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Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2012	Oct. 25, 2012
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Trading Symbol	AME
Entity Registrant Name	AMETEK INC/
Entity Central Index Key	0001037868
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		242,984,286

Consolidated Statement of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net sales	$ 839,373	$ 750,546	$ 2,492,423	$ 2,227,163
Operating expenses:
Cost of sales, excluding depreciation	541,454	493,266	1,609,490	1,466,026
Selling, general and administrative	96,021	86,019	286,703	257,196
Depreciation	13,734	11,675	40,312	35,380
Total operating expenses	651,209	590,960	1,936,505	1,758,602
Operating income	188,164	159,586	555,918	468,561
Other expenses:
Interest expense	(18,958)	(17,256)	(56,638)	(51,745)
Other, net	(3,518)	(3,287)	(7,606)	(7,153)
Income before income taxes	165,688	139,043	491,674	409,663
Provision for income taxes	50,291	41,065	152,440	127,106
Net income	$ 115,397	$ 97,978	$ 339,234	$ 282,557
Basic earnings per share	$ 0.48	$ 0.41	$ 1.41	$ 1.17
Diluted earnings per share	$ 0.47	$ 0.40	$ 1.39	$ 1.16
Weighted average common shares outstanding:
Basic shares	242,138	241,386	241,164	240,529
Diluted shares	244,229	243,771	243,552	243,457
Dividends declared and paid per share	$ 0.06	$ 0.04	$ 0.16	$ 0.12

Statement of Other Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Comprehensive income	$ 135,062	$ 62,610	$ 355,212	$ 272,604

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

Consolidated Balance Sheet - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 162,851	$ 170,392
Marketable securities	5,253	4,563
Receivables, less allowance for possible losses	492,864	438,245
Inventories	407,898	380,471
Deferred income taxes	30,825	29,268
Other current assets	36,141	36,180
Total current assets	1,135,832	1,059,119
Property, plant and equipment, net	361,680	325,329
Goodwill	2,065,772	1,806,237
Other intangibles, net of accumulated amortization	1,188,153	982,957
Investments and other assets	142,074	145,848
Total assets	4,893,511	4,319,490
Current liabilities:
Short-term borrowings and current portion of long-term debt	242,781	140,508
Accounts payable	288,221	283,068
Income taxes payable	34,717	24,127
Accrued liabilities	196,674	181,172
Total current liabilities	762,393	628,875
Long-term debt	1,129,383	1,123,416
Deferred income taxes	432,797	389,088
Other long-term liabilities	145,070	125,306
Total liabilities	2,469,643	2,266,685
Stockholders' equity:
Common stock, $0.01 par value; authorized: 400,000,000 shares; issued: 255,984,466 and 253,824,112 shares	2,561	2,538
Capital in excess of par value	376,352	315,688
Retained earnings	2,402,092	2,101,615
Accumulated other comprehensive loss	(141,285)	(157,263)
Treasury stock: 13,037,058 and 13,266,742 shares	(215,852)	(209,773)
Total stockholders' equity	2,423,868	2,052,805
Total liabilities and stockholders' equity	$ 4,893,511	$ 4,319,490

Consolidated Balance Sheet (Parenthetical) - $ / shares	Sep. 30, 2012	Dec. 31, 2011
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	255,984,466	253,824,112
Treasury stock, shares	13,037,058	13,266,742

Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities:
Net income	$ 339,234	$ 282,557
Adjustments to reconcile net income to total operating activities:
Depreciation and amortization	77,845	62,527
Deferred income taxes	(1,414)	(134)
Share-based compensation expense	14,575	18,356
Net change in assets and liabilities, net of acquisitions	(8,242)	(5,593)
Pension contribution and other	(2,824)	(1,874)
Total operating activities	419,174	355,839
Investing activities:
Additions to property, plant and equipment	(33,256)	(32,410)
Purchases of businesses, net of cash acquired	(497,785)	(182,506)
Other	649	(2,150)
Total investing activities	(530,392)	(217,066)
Financing activities:
Net change in short-term borrowings	101,818	(56,517)
Reduction in long-term borrowings	(978)	(781)
Repurchases of common stock	(3,899)	(16,384)
Cash dividends paid	(38,556)	(28,800)
Excess tax benefits from share-based payments	12,319	11,654
Proceeds from employee stock plans and other	30,739	12,615
Total financing activities	101,443	(78,213)
Effect of exchange rate changes on cash and cash equivalents	2,234	(5,494)
(Decrease) increase in cash and cash equivalents	(7,541)	55,066
Cash and cash equivalents:
As of January 1	170,392	163,208
As of September 30	$ 162,851	$ 218,274

Basis of Presentation

9 Months Ended

Sep. 30, 2012

Basis of Presentation

1.	Basis of Presentation

The accompanying consolidated financial statements are unaudited. AMETEK, Inc. (the “Company”) believes that all adjustments (which primarily consist of normal recurring accruals) necessary for a fair presentation of the consolidated financial position of the Company at September 30, 2012, the consolidated results of its operations for the three and nine months ended September 30, 2012 and 2011 and its cash flows for the nine months ended September 30, 2012 and 2011 have been included. Quarterly results of operations are not necessarily indicative of results for the full year. The accompanying financial statements should be read in conjunction with the financial statements and related notes presented in the Company’s Annual Report on Form

10-K for the year ended December 31, 2011 as filed with the Securities and Exchange Commission.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

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+ Details

Stock Split

9 Months Ended

Sep. 30, 2012

Stock Split

2.	Stock Split

On May 1, 2012, the Company’s Board of Directors declared a three-for-two split of the Company’s common stock. The stock split resulted in the issuance of one additional share for every two shares owned. The stock split was paid on June 29, 2012, to stockholders of record at the close of business on June 15, 2012. Additionally, the Board of Directors approved a 50% increase in the quarterly cash dividend rate on the Company’s common stock to $0.06 per common share from $0.04 per common share on a post-split basis. All share and per share information included in this Quarterly Report on Form 10-Q has been retroactively adjusted to reflect the impact of the stock split.

Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2012

Recent Accounting Pronouncements

3.	Recent Accounting Pronouncements

In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”). ASU 2011-04 amendments result in a consistent definition of fair value and common requirements for measurement of and disclosure about fair value between U.S. generally accepted accounting principles (“GAAP”) and International Financial Reporting Standards (“IFRSs”). ASU 2011-04 was effective on January 1, 2012 for the Company and the adoption did not have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

In June 2011, the FASB issued ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”). ASU 2011-05 requires that all nonowner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. In the two-statement approach, the first statement should present total net income and its components followed consecutively by a second statement that should present total other comprehensive income, the components of other comprehensive income and the total of comprehensive income. For interim periods, issuers are only required to provide a total of comprehensive income. These amendments do not change the items that must be reported in other comprehensive income. The Company adopted ASU 2011-05 effective January 1, 2012. See the Consolidated Statement of Comprehensive Income.

In September 2011, the FASB issued ASU No. 2011-08, Testing Goodwill for Impairment (“ASU 2011-08”). The amendments in ASU 2011-08 permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in FASB Accounting Standards Codification Topic 350, Intangibles – Goodwill and Other. ASU 2011-08 was effective on January 1, 2012 for the Company and the adoption did not have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

In July 2012, the FASB issued ASU No. 2012-02, Testing Indefinite-Lived Intangible Assets for Impairment (“ASU 2012-02”). The amendments in ASU 2012-02, similar to the amendments of ASU 2011-08, permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is impaired, as a basis for determining whether it is necessary to perform the quantitative impairment test described in FASB Accounting Standards Codification Topic 350, Intangibles – Goodwill and Other. ASU 2012-02 is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. The Company does not expect ASU 2012-02 to have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

- Definition

The entire disclosure for reporting accounting changes and error corrections. It includes the conveyance of information necessary for a user of the Company's financial information to understand all aspects and required disclosure information concerning all changes and error corrections reported in the Company's financial statements for the period.

+ References + Details

Earnings Per Share

9 Months Ended

Sep. 30, 2012

Earnings Per Share

4.	Earnings Per Share

The calculation of basic earnings per share is based on the weighted average number of common shares considered outstanding during the periods. The calculation of diluted earnings per share reflects the effect of all potentially dilutive securities (principally outstanding stock options and restricted stock grants). The number of weighted average shares used in the calculation of basic earnings per share and diluted earnings per share was as follows:

Three Months Ended
September 30,

Nine Months Ended
September 30,

2012

2011

2012

2011

(In thousands)

Weighted average shares:

Basic shares

242,138

241,386

241,164

240,529

Equity-based compensation plans

2,091

2,385

2,388

2,928

Diluted shares

244,229

243,771

243,552

243,457

Comprehensive Income

9 Months Ended

Sep. 30, 2012

Comprehensive Income

5.	Comprehensive Income

The difference between net income and comprehensive income in the periods presented is primarily driven by foreign currency translation adjustments, as well as the net gains or losses on net investment hedges of certain foreign subsidiaries, amortization of defined benefit pension actuarial gains or losses and other.

- Definition

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

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+ Details

Fair Value Measurements

9 Months Ended

Sep. 30, 2012

Fair Value Measurements

6.	Fair Value Measurements

Cash, cash equivalents, marketable securities and fixed-income investments are recorded at fair value at September 30, 2012 and December 31, 2011 in the accompanying consolidated balance sheet.

The Company utilizes a valuation hierarchy for disclosure of the inputs to the valuations used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on the Company’s own assumptions used to measure assets and liabilities at fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

At September 30, 2012, the Company held $5.3 million in marketable securities, of which $5.1 million was held in an institutional diversified equity securities mutual fund, which is valued as a level 2 investment. In addition, the Company held $0.2 million of marketable securities valued as level 1 investments. The marketable securities are shown as a separate line on the consolidated balance sheet. Fair value of the institutional diversified equity securities mutual fund was estimated using the net asset value of the Company’s ownership interests in the fund’s capital. The mutual fund seeks to provide long-term growth of capital by investing primarily in equity securities traded on U.S. exchanges and issued by large, established companies across many business sectors. There are no restrictions on the Company’s ability to redeem these equity securities investments.

At September 30, 2012, the Company held $3.0 million in fixed-income investments. The fair value of fixed-income investments was based on quoted market prices which are valued as level 1 investments. The fixed-income investments are shown as a component of long-term assets on the consolidated balance sheet.

For the nine months ended September 30, 2012, gains and losses on the investments noted above were not significant. No transfers between level 1 and level 2 investments occurred during the nine months ended September 30, 2012.

Forward contracts are entered into from time to time to hedge specific firm commitments for certain inventory purchases, export sales or debt, thereby minimizing the Company’s exposure to raw material commodity price or foreign currency fluctuation. At September 30, 2012, the Company had a 9.9 million Euro forward contract ($27 thousand fair value unrealized loss at September 30, 2012) outstanding. For the three months ended September 30, 2012, realized gains on foreign currency forward contracts was $0.3 million. For the nine months ended September 30, 2012, realized losses on foreign currency forward contracts was $2.4 million. For the three and nine months ended September 30, 2012, unrealized gains or losses on the forward contracts were not significant. The Company has not designated its foreign currency forward contracts as hedges. No forward contracts were outstanding at December 31, 2011.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Hedging Activities

9 Months Ended

Sep. 30, 2012

Hedging Activities

7.	Hedging Activities

The Company has designated certain foreign-currency-denominated long-term borrowings as hedges of the net investment in certain foreign operations. As of September 30, 2012, these net investment hedges included British-pound- and Euro-denominated long-term debt. These borrowings were designed to create net investment hedges in each of the designated foreign subsidiaries. The Company designated the British-pound- and Euro-denominated loans referred to above as hedging instruments to offset translation gains or losses on the net investment due to changes in the British pound and Euro exchange rates. These net investment hedges were evidenced by management’s contemporaneous documentation supporting the hedge designation. Any gain or loss on the hedging instrument (the debt) following hedge designation is reported in accumulated other comprehensive income in the same manner as the translation adjustment on the investment based on changes in the spot rate, which is used to measure hedge effectiveness.

At September 30, 2012, the Company had $194.0 million of British-pound-denominated loans, which are designated as a hedge against the net investment in British pound functional currency foreign subsidiaries. At September 30, 2012, the Company had a $64.3 million Euro-denominated loan, which is designated as a hedge against the net investment in Euro functional currency foreign subsidiaries. As a result of these British-pound- and Euro-denominated loans being designated and 100% effective as net investment hedges, $5.6 million of currency remeasurement losses have been included in the foreign currency translation component of other comprehensive income at September 30, 2012.

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventories

9 Months Ended

Sep. 30, 2012

Inventories

8.	Inventories


	September 30, 2012		December 31, 2011
	(In thousands)
Finished goods and parts	$	66,642	$	70,315
Work in process		73,206		72,676
Raw materials and purchased parts		268,050		237,480

Total inventories	$	407,898	$	380,471

Acquisitions

9 Months Ended

Sep. 30, 2012

Acquisitions

9.	Acquisitions

The Company spent $497.8 million in cash, net of cash acquired, to acquire O’Brien Corporation in January 2012 and the parent company of Dunkermotoren GmbH in May 2012. O’Brien is a leading manufacturer of fluid and gas handling solutions, sample conditioning equipment and process analyzers. Dunkermotoren is a leader in advanced motion control solutions for a wide range of industrial automation applications. O’Brien is part of AMETEK’s Electronic Instruments Group and Dunkermotoren is part of AMETEK’s Electromechanical Group.

The operating results of the above acquisitions have been included in the Company’s consolidated results from the respective dates of acquisitions.

The following table represents the preliminary allocation of the aggregate purchase price for the net assets of the above acquisitions based on the estimated fair value at acquisition (in millions):


Property, plant and equipment	$	43.6
Goodwill		251.8
Other intangible assets		238.5
Deferred income taxes		(46.8	)
Net working capital and other*		10.7

Total purchase price	$	497.8

*	Includes $31.4 million in accounts receivable, whose fair value, contractual cash flows and expected cash flows are approximately equal.

The amount allocated to goodwill is reflective of the benefits the Company expects to realize from the acquisitions as follows: O’Brien’s product lines are both highly differentiated and highly complementary to AMETEK’s process instruments businesses. Combined with the Company’s analytical instrument solutions, AMETEK now can offer its customers a complete solution for most of their process analysis needs. Dunkermotoren is a strategic and highly complementary fit with AMETEK’s Precision Motion Control business. Dunkermotoren expands the Company’s leadership position in niche rotary and linear motion applications. The Company expects approximately $112.4 million of the goodwill recorded in connection with the 2012 acquisitions will be tax deductible in future years.

The Company is in the process of finalizing the measurement of deferred taxes associated with its acquisitions of O’Brien and Dunkermotoren.

At September 30, 2012, purchase price allocated to other intangible assets of $238.5 million consists of $65.6 million of indefinite-lived intangible trademarks and trade names, which are not subject to amortization. The remaining $172.9 million of other intangible assets consist of $148.7 million of customer relationships, which are being amortized over a period of 16-20 years and $24.2 million of purchased technology, which is being amortized over a period of 15 years. Amortization expense for each of the next five years for the 2012 acquisitions listed above is expected to approximate $9.5 million per year.

The 2012 acquisitions noted above had an immaterial impact on reported net sales, net income and diluted earnings per share for the three and nine months ended September 30, 2012. Had the 2012 acquisitions been made at the beginning of 2012, unaudited pro forma net sales, net income and diluted earnings per share for the three and nine months ended September 30, 2012 would not have been materially different than the amounts reported. Had the 2012 acquisitions been made at the beginning of 2011, unaudited pro forma net sales for the three and nine months ended September 30, 2011 would have been $825.6 million and $2,447.1 million, respectively. Net income and diluted earnings per share for the three and nine months ended September 30, 2011 would not have been materially different than the amounts reported. Pro forma results are not necessarily indicative of the results that would have occurred if the acquisition had been completed at the beginning of 2012 or 2011.

Acquisitions Subsequent to September 30, 2012

In October 2012, the Company acquired Micro-Poise Measurement Systems (“Micro-Poise”), a leading provider of integrated test and measurement solutions for the tire industry. Micro-Poise was acquired for approximately $170 million and has estimated annual sales of approximately $125 million. Micro-Poise broadens AMETEK’s position in the materials test and measurement equipment market and will join AMETEK’s Electronic Instruments Group.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph F4
-Subparagraph e
-Appendix F

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 67-73
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill

9 Months Ended

Sep. 30, 2012

Goodwill

10.

Goodwill

The changes in the carrying amounts of goodwill by segment were as follows:

Electronic
Instruments
Group

Electro-
mechanical
Group

Total

(In millions)

Balance at December 31, 2011

997.7

808.5

1,806.2

Goodwill acquired

111.3

140.5

251.8

Purchase price allocation adjustments and other

(0.6

)

—

(0.6

)

Foreign currency translation adjustments

3.9

4.5

8.4

Balance at September 30, 2012

1,112.3

953.5

2,065.8

Income Taxes

9 Months Ended

Sep. 30, 2012

Income Taxes

11.

Income Taxes

At September 30, 2012, the Company had gross unrecognized tax benefits of $33.5 million, of which $30.9 million, if recognized, would impact the effective tax rate.

The following is a reconciliation of the liability for uncertain tax positions (in millions):


Balance at December 31, 2011	$	28.5
Additions for tax positions		5.5
Reductions for tax positions		(0.5	)

Balance at September 30, 2012	$	33.5

The Company recognizes interest and penalties accrued related to uncertain tax positions in income tax expense. The amounts recognized in income tax expense for interest and penalties during the three and nine months ended September 30, 2012 and 2011 were not significant.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Financial Instruments

9 Months Ended

Sep. 30, 2012

Financial Instruments

12.

Financial Instruments

The estimated fair values of the Company’s financial instruments, for which fair value is measured for disclosure purposes only, are compared below to the recorded amounts at September 30, 2012 and December 31, 2011.


	Asset (Liability)
	September 30, 2012						December 31, 2011
	Recorded Amount			Fair Value			Recorded Amount			Fair Value
	(In thousands)
Short-term borrowings	$	(235,433	)	$	(235,433	)	$	(135,892	)	$	(135,892	)
Long-term debt (including current portion)		(1,136,731	)		(1,362,598	)		(1,128,032	)		(1,298,503	)

The fair value of short-term borrowings approximates the carrying value. The Company’s long-term debt is all privately held with no public market for this debt, therefore, the fair value of long-term debt was computed based on comparable current market data for similar debt instruments.

Share-Based Compensation

9 Months Ended

Sep. 30, 2012

Share-Based Compensation

13.

Share-Based Compensation

The fair value of each stock option grant is estimated on the date of grant using a Black-Scholes-Merton option pricing model. The following weighted average assumptions were used in the Black-Scholes-Merton model to estimate the fair values of options granted during the periods indicated:


	Nine Months Ended September 30, 2012			Year Ended December 31, 2011
Expected volatility		28.4	%		26.4	%
Expected term (years)		5.1			5.0
Risk-free interest rate		0.84	%		1.96	%
Expected dividend yield		0.47	%		0.54	%
Black-Scholes-Merton fair value per stock option granted	$	8.54		$	7.56

Expected volatility is based on the historical volatility of the Company’s stock. The Company used historical exercise data to estimate the stock options’ expected term, which represents the period of time that the stock options granted are expected to be outstanding. Management anticipates that the future stock option holding periods will be similar to the historical stock option holding periods. The risk-free interest rate for periods within the contractual life of the stock option is based on the U.S. Treasury yield curve at the time of grant. Compensation expense recognized for all share-based awards is net of estimated forfeitures. The Company’s estimated forfeiture rates are based on its historical experience.

Total share-based compensation expense was as follows:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(In thousands)
Stock option expense	$	2,256		$	2,095		$	7,248		$	6,160
Restricted stock expense		2,106			1,986			7,327			12,196

Total pre-tax expense		4,362			4,081			14,575			18,356
Related tax benefit		(1,399	)		(1,333	)		(4,957	)		(5,872	)

Reduction of net income	$	2,963		$	2,748		$	9,618		$	12,484

Pre-tax share-based compensation expense is included in either cost of sales, or selling, general and administrative expenses, depending on where the recipient’s cash compensation is reported.

The following is a summary of the Company’s stock option activity and related information:

Shares

Weighted
Average
Exercise Price

Weighted
Average
Remaining
Contractual Life

Aggregate
Intrinsic Value

(In thousands)

(Years)

(In millions)

Outstanding at December 31, 2011

8,198

18.50

Granted

1,386

34.01

Exercised

(2,160

)

15.63

Forfeited

(101

)

23.32

Expired

)

20.21

Outstanding at September 30, 2012

7,321

22.22

4.2

96.9

Exercisable at September 30, 2012

4,036

18.90

3.3

66.8

The aggregate intrinsic value of stock options exercised during the nine months ended September 30, 2012 was $37.5 million. The total fair value of stock options vested during the nine months ended September 30, 2012 was $8.9 million. As of September 30, 2012, there was approximately $16.3 million of expected future pre-tax compensation expense related to the 3.3 million nonvested stock options outstanding, which is expected to be recognized over a weighted average period of less than two years.

The following is a summary of the Company’s nonvested restricted stock activity and related information:


	Shares			Weighted Average Grant Date Fair Value
	(In thousands)
Nonvested restricted stock outstanding at December 31, 2011		1,414		$	22.71
Granted		400			33.79
Vested		(465	)		21.80
Forfeited		(39	)		25.89

Nonvested restricted stock outstanding at September 30, 2012		1,310		$	26.32

The total fair value of restricted stock that vested during the nine months ended September 30, 2012 was $10.0 million. As of September 30, 2012, there was approximately $22.3 million of expected future pre-tax compensation expense related to the 1.3 million nonvested restricted shares outstanding, which is expected to be recognized over a weighted average period of approximately two years.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Retirement and Pension Plans

9 Months Ended

Sep. 30, 2012

Retirement and Pension Plans

14.

Retirement and Pension Plans

The components of net periodic pension benefit expense (income) were as follows:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(In thousands)
Defined benefit plans:
Service cost	$	1,568		$	1,094		$	4,110		$	3,278
Interest cost		7,096			7,252			20,645			21,424
Expected return on plan assets		(10,867	)		(11,259	)		(32,242	)		(33,831	)
Amortization of net actuarial loss and other		2,852			1,310			8,556			3,585

Pension expense (income)		649			(1,603	)		1,069			(5,544	)


Other plans:
Defined contribution plans		4,153			3,470			13,850			10,987
Foreign plans and other		1,112			1,537			3,437			3,938

Total other plans		5,265			5,007			17,287			14,925


Total net pension expense	$	5,914		$	3,404		$	18,356		$	9,381

For the nine months ended September 30, 2012 and 2011, contributions to the Company’s defined benefit pension plans were not significant.

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph q
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 20, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Product Warranties

9 Months Ended

Sep. 30, 2012

Product Warranties

15.

Product Warranties

The Company provides limited warranties in connection with the sale of its products. The warranty periods for products sold vary widely among the Company’s operations, but for the most part do not exceed one year. The Company calculates its warranty expense provision based on past warranty experience and adjustments are made periodically to reflect actual warranty expenses.

Changes in the accrued product warranty obligation were as follows:


	Nine Months Ended September 30,
	2012			2011
	(In thousands)
Balance at the beginning of the period	$	22,466		$	18,347
Accruals for warranties issued during the period		8,381			9,450
Settlements made during the period		(7,201	)		(7,472	)
Warranty accruals related to new businesses and other during the period		3,381			674

Balance at the end of the period	$	27,027		$	20,999

Certain settlements of warranties made during the period were for specific nonrecurring warranty obligations. Product warranty obligations are reported as current liabilities in the consolidated balance sheet.

Contingencies

9 Months Ended

Sep. 30, 2012

Contingencies

16.

Contingencies

Environmental Matters

Certain historic processes in the manufacture of products have resulted in environmentally hazardous waste by-products as defined by federal and state laws and regulations. At September 30, 2012, the Company is named a Potentially Responsible Party (“PRP”) at 15 non-AMETEK-owned former waste disposal or treatment sites (the “non-owned” sites). The Company is identified as a “de minimis” party in 14 of these sites based on the low volume of waste attributed to the Company relative to the amounts attributed to other named PRPs. In ten of these sites, the Company has reached a tentative agreement on the cost of the de minimis settlement to satisfy its obligation and is awaiting executed agreements. The tentatively agreed-to settlement amounts are fully reserved. In the other four sites, the Company is continuing to investigate the accuracy of the alleged volume attributed to the Company as estimated by the parties primarily responsible for remedial activity at the sites to establish an appropriate settlement amount. At the remaining site where the Company is a non-de minimis PRP, the Company is participating in the investigation and/or related required remediation as part of a PRP Group and reserves have been established sufficient to satisfy the Company’s expected obligations. The Company historically has resolved these issues within established reserve levels and reasonably expects this result will continue. In addition to these non-owned sites, the Company has an ongoing practice of providing reserves for probable remediation activities at certain of its current or previously owned manufacturing locations (the “owned” sites). For claims and proceedings against the Company with respect to other environmental matters, reserves are established once the Company has determined that a loss is probable and estimable. This estimate is refined as the Company moves through the various stages of investigation, risk assessment, feasibility study and corrective action processes. In certain instances, the Company has developed a range of estimates for such costs and has recorded a liability based on the low end of the range. It is reasonably possible that the actual cost of remediation of the individual sites could vary from the current estimates and the amounts accrued in the consolidated financial statements; however, the amounts of such variances are not expected to result in a material change to the consolidated financial statements. In estimating the Company’s liability for remediation, the Company also considers the likely proportionate share of the anticipated remediation expense and the ability of the other PRPs to fulfill their obligations.

Total environmental reserves at September 30, 2012 and December 31, 2011 were $23.7 million and $28.0 million, respectively, for both non-owned and owned sites. For the nine months ended September 30, 2012, the Company recorded $0.5 million in reserves. Additionally, the Company spent $4.8 million on environmental matters for the nine months ended September 30, 2012. The Company’s reserves for environmental liabilities at September 30, 2012 and December 31, 2011 include reserves of $14.8 million and $17.5 million, respectively, for an owned site acquired in connection with the 2005 acquisition of HCC Industries (“HCC”). The Company is the designated performing party for the performance of remedial activities for one of several operating units making up a large Superfund site in the San Gabriel Valley of California. The Company has obtained indemnifications and other financial assurances from the former owners of HCC related to the costs of the required remedial activities. At September 30, 2012, the Company had $13.5 million in receivables related to HCC for probable recoveries from third-party escrow funds and other committed third-party funds to support the required remediation. Also, the Company is indemnified by HCC’s former owners for approximately $19.0 million of additional costs.

The Company has agreements with other former owners of certain of its acquired businesses, as well as new owners of previously owned businesses. Under certain of the agreements, the former or new owners retained, or assumed and agreed to indemnify the Company against, certain environmental and other liabilities under certain circumstances. The Company and some of these other parties also carry insurance coverage for some environmental matters. To date, these parties have met their obligations in all material respects.

The Company believes it has established reserves which are sufficient to perform all known responsibilities under existing claims and consent orders. The Company has no reason to believe that other third parties would fail to perform their obligations in the future. In the opinion of management, based upon presently available information and past experience related to such matters, an adequate provision for probable costs has been made and the ultimate cost resulting from these actions is not expected to materially affect the consolidated results of operations, financial position or cash flows of the Company.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Reportable Segments

9 Months Ended

Sep. 30, 2012

Reportable Segments

17.

Reportable Segments

The Company has two reportable segments, Electronic Instruments Group (“EIG”) and Electromechanical Group (“EMG”). The Company identifies its operating segments for segment reporting purposes primarily on the basis of product type, production processes, distribution methods and management organizations.

At September 30, 2012, there were no significant changes in identifiable assets of reportable segments from the amounts disclosed at December 31, 2011, other than those described in the acquisitions footnote (Note 9), nor were there any significant changes in the basis of segmentation or in the measurement of segment operating results. Operating information relating to the Company’s reportable segments for the three and nine months ended September 30, 2012 and 2011 can be found in the table included in Part I, Item 2. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this Quarterly Report on Form 10-Q.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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-Name Accounting Standards Codification
-Topic 280
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-Publisher FASB
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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Recent Accounting Pronouncements (Policies)	9 Months Ended
Recent Accounting Pronouncements (Policies)	Sep. 30, 2012
Fair Value Measurements and Disclosures	In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”). ASU 2011-04 amendments result in a consistent definition of fair value and common requirements for measurement of and disclosure about fair value between U.S. generally accepted accounting principles (“GAAP”) and International Financial Reporting Standards (“IFRSs”). ASU 2011-04 was effective on January 1, 2012 for the Company and the adoption did not have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.
Presentation of Comprehensive Income	In June 2011, the FASB issued ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”). ASU 2011-05 requires that all nonowner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. In the two-statement approach, the first statement should present total net income and its components followed consecutively by a second statement that should present total other comprehensive income, the components of other comprehensive income and the total of comprehensive income. For interim periods, issuers are only required to provide a total of comprehensive income. These amendments do not change the items that must be reported in other comprehensive income. The Company adopted ASU 2011-05 effective January 1, 2012. See the Consolidated Statement of Comprehensive Income.
Goodwill Impairment	In September 2011, the FASB issued ASU No. 2011-08, Testing Goodwill for Impairment (“ASU 2011-08”). The amendments in ASU 2011-08 permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in FASB Accounting Standards Codification Topic 350, Intangibles – Goodwill and Other. ASU 2011-08 was effective on January 1, 2012 for the Company and the adoption did not have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.
Indefinite-Lived Intangible Assets for Impairment	In July 2012, the FASB issued ASU No. 2012-02, Testing Indefinite-Lived Intangible Assets for Impairment (“ASU 2012-02”). The amendments in ASU 2012-02, similar to the amendments of ASU 2011-08, permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is impaired, as a basis for determining whether it is necessary to perform the quantitative impairment test described in FASB Accounting Standards Codification Topic 350, Intangibles – Goodwill and Other. ASU 2012-02 is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. The Company does not expect ASU 2012-02 to have a significant impact on the Company’s consolidated results of operations, financial position or cash flows.

Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Number of Weighted Average Shares

grants). The number of weighted average shares used in the calculation of basic earnings per share and diluted earnings per share was as follows:

Three Months Ended
September 30,

Nine Months Ended
September 30,

2012

2011

2012

2011

(In thousands)

Weighted average shares:

Basic shares

242,138

241,386

241,164

240,529

Equity-based compensation plans

2,091

2,385

2,388

2,928

Diluted shares

244,229

243,771

243,552

243,457

Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Inventories


	September 30, 2012		December 31, 2011
	(In thousands)
Finished goods and parts	$	66,642	$	70,315
Work in process		73,206		72,676
Raw materials and purchased parts		268,050		237,480

Total inventories	$	407,898	$	380,471

Acquisitions (Tables)

9 Months Ended

Sep. 30, 2012

Allocation of Aggregate Purchase Price of Acquired Net Assets

The following table represents the preliminary allocation of the aggregate purchase price for the net assets of the above acquisitions based on the estimated fair value at acquisition (in millions):


Property, plant and equipment	$	43.6
Goodwill		251.8
Other intangible assets		238.5
Deferred income taxes		(46.8	)
Net working capital and other*		10.7

Total purchase price	$	497.8

*	Includes $31.4 million in accounts receivable, whose fair value, contractual cash flows and expected cash flows are approximately equal.

- Definition

Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1486-128463

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph F4
-Subparagraph e
-Appendix F

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill (Tables)

9 Months Ended

Sep. 30, 2012

Changes in the Carrying Amounts of Goodwill by Segment

The changes in the carrying amounts of goodwill by segment were as follows:

Electronic
Instruments
Group

Electro-
mechanical
Group

Total

(In millions)

Balance at December 31, 2011

997.7

808.5

1,806.2

Goodwill acquired

111.3

140.5

251.8

Purchase price allocation adjustments and other

(0.6

)

—

(0.6

)

Foreign currency translation adjustments

3.9

4.5

8.4

Balance at September 30, 2012

1,112.3

953.5

2,065.8

Income Taxes (Tables)

9 Months Ended

Sep. 30, 2012

Reconciliation of Liability for Uncertain Tax Positions

The following is a reconciliation of the liability for uncertain tax positions (in millions):


Balance at December 31, 2011	$	28.5
Additions for tax positions		5.5
Reductions for tax positions		(0.5	)

Balance at September 30, 2012	$	33.5

- Definition

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

+ References + Details

Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2012

Estimated Fair Values and Recorded Amounts of the Company's Financial Instruments


	Asset (Liability)
	September 30, 2012						December 31, 2011
	Recorded Amount			Fair Value			Recorded Amount			Fair Value
	(In thousands)
Short-term borrowings	$	(235,433	)	$	(235,433	)	$	(135,892	)	$	(135,892	)
Long-term debt (including current portion)		(1,136,731	)		(1,362,598	)		(1,128,032	)		(1,298,503	)

Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Weighted Average Assumptions Used for Estimating Fair Value of Options Granted

using a Black-Scholes-Merton option pricing model. The following weighted average assumptions were used in the Black-Scholes-Merton model to estimate the fair values of options granted during the periods indicated:


	Nine Months Ended September 30, 2012			Year Ended December 31, 2011
Expected volatility		28.4	%		26.4	%
Expected term (years)		5.1			5.0
Risk-free interest rate		0.84	%		1.96	%
Expected dividend yield		0.47	%		0.54	%
Black-Scholes-Merton fair value per stock option granted	$	8.54		$	7.56

Total Share-Based Compensation Expense

Total share-based compensation expense was as follows:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(In thousands)
Stock option expense	$	2,256		$	2,095		$	7,248		$	6,160
Restricted stock expense		2,106			1,986			7,327			12,196

Total pre-tax expense		4,362			4,081			14,575			18,356
Related tax benefit		(1,399	)		(1,333	)		(4,957	)		(5,872	)

Reduction of net income	$	2,963		$	2,748		$	9,618		$	12,484

Company's Stock Option Activity and Related Information

The following is a summary of the Company’s stock option activity and related information:

Shares

Weighted
Average
Exercise Price

Weighted
Average
Remaining
Contractual Life

Aggregate
Intrinsic Value

(In thousands)

(Years)

(In millions)

Outstanding at December 31, 2011

8,198

18.50

Granted

1,386

34.01

Exercised

(2,160

)

15.63

Forfeited

(101

)

23.32

Expired

)

20.21

Outstanding at September 30, 2012

7,321

22.22

4.2

96.9

Exercisable at September 30, 2012

4,036

18.90

3.3

66.8

Non-vested Restricted Stock Outstanding

The following is a summary of the Company’s nonvested restricted stock activity and related information:


	Shares			Weighted Average Grant Date Fair Value
	(In thousands)
Nonvested restricted stock outstanding at December 31, 2011		1,414		$	22.71
Granted		400			33.79
Vested		(465	)		21.80
Forfeited		(39	)		25.89

Nonvested restricted stock outstanding at September 30, 2012		1,310		$	26.32

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References + Details

Retirement and Pension Plans (Tables)

9 Months Ended

Sep. 30, 2012

Components of Net Periodic Pension Benefit Expense

The components of net periodic pension benefit expense (income) were as follows:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(In thousands)
Defined benefit plans:
Service cost	$	1,568		$	1,094		$	4,110		$	3,278
Interest cost		7,096			7,252			20,645			21,424
Expected return on plan assets		(10,867	)		(11,259	)		(32,242	)		(33,831	)
Amortization of net actuarial loss and other		2,852			1,310			8,556			3,585

Pension expense (income)		649			(1,603	)		1,069			(5,544	)


Other plans:
Defined contribution plans		4,153			3,470			13,850			10,987
Foreign plans and other		1,112			1,537			3,437			3,938

Total other plans		5,265			5,007			17,287			14,925


Total net pension expense	$	5,914		$	3,404		$	18,356		$	9,381

- Definition

Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2439-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=21916443&loc=d3e4179-114921

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 4, 7, 16, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Product Warranties (Tables)

9 Months Ended

Sep. 30, 2012

Changes in Accrued Product Warranty Obligation

Changes in the accrued product warranty obligation were as follows:


	Nine Months Ended September 30,
	2012			2011
	(In thousands)
Balance at the beginning of the period	$	22,466		$	18,347
Accruals for warranties issued during the period		8,381			9,450
Settlements made during the period		(7,201	)		(7,472	)
Warranty accruals related to new businesses and other during the period		3,381			674

Balance at the end of the period	$	27,027		$	20,999

Stock Split - Additional Information (Detail)	1 Months Ended
Stock Split - Additional Information (Detail)	May 01, 2012 $ / shares
Date stock split declared	May 01, 2012
Type of stock split	Three-for-two split of the Company's common stock
Stock split description	One additional share for every two shares owned as of the record date
Stock split payable date	Jun. 29, 2012
Stock split record date	Jun. 15, 2012
Percentage increase in quarterly cash dividend rate	50.00%
Quarterly cash dividend rate per common share after stock split	$ 0.06
Quarterly cash dividend rate per common share before stock split	$ 0.04

Earnings Per Share - Number of Weighted Average Shares (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Weighted average shares:
Basic shares	242,138	241,386	241,164	240,529
Equity-based compensation plans	2,091	2,385	2,388	2,928
Diluted shares	244,229	243,771	243,552	243,457

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Forward contracts outstanding	$ 9,900	$ 9,900	$ 0
Forward contracts, fair value	27	27
Realized gains (losses) on foreign currency forward contracts	300	2,400
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	5,300	5,300
Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	5,100	5,100
Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	200	200
Fixed-income investments	$ 3,000	$ 3,000

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References + Details

Hedging Activities - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2012 USD ($)
Derivative [Line Items]
Percentage of effectiveness on net investment hedges	100.00%
Currency remeasurement gains (losses)	$ 5.6
British pound-denominated loans [Member]
Derivative [Line Items]
Hedge against the net investment in foreign subsidiaries acquired	194.0
Euro-denominated loans [Member]
Derivative [Line Items]
Hedge against the net investment in foreign subsidiaries acquired	$ 64.3

- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e681-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32022-110900

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 12, 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 31
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17, 18, 19, 22, 23, 24, 25, 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Finished goods and parts	$ 66,642	$ 70,315
Work in process	73,206	72,676
Raw materials and purchased parts	268,050	237,480
Total inventories	$ 407,898	$ 380,471

Acquisitions - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Oct. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Amount of cash paid for acquisitions		$ 497.8
Goodwill recorded in connection with acquisition		112.4
Total other intangible assets acquired		238.5
Indefinite-lived intangible trademarks and trade names acquired		65.6
Finite-lived intangible assets acquired		172.9
Future amortization expense, Year One		9.5
Future amortization expense, Year Two		9.5
Future amortization expense, Year Three		9.5
Future amortization expense, Year Four		9.5
Future amortization expense, Year Five		9.5
Net sales acquisitions	$ 825.6		$ 2,447.1
Purchase price of acquisition		497.8
Subsequent Event [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Purchase price of acquisition				$ 170.0
Estimated annual sales				$ 125.0
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired		$ 148.7
Customer Relationships [Member] \| Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period for finite-lived intangible asset		16 years
Customer Relationships [Member] \| Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period for finite-lived intangible asset		20 years
Purchased Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired		$ 24.2
Amortization period for finite-lived intangible asset		15 years

Acquisitions - Allocation of Aggregate Purchase Price of Acquired Net Assets (Detail)
$ in Millions

Sep. 30, 2012

USD ($)

Business Acquisition [Line Items]

Property, plant and equipment

$ 43.6

Goodwill

251.8

Other intangible assets

238.5

Deferred income taxes

(46.8)

Net working capital and other*

10.7

^[1]

Total purchase price

$ 497.8

[1]	Includes $31.4 million in accounts receivable, whose fair value, contractual cash flows and expected cash flows are approximately equal.

Acquisitions - Allocation of Aggregate Purchase Price of Acquired Net Assets (Parenthetical) (Detail) $ in Millions	Sep. 30, 2012 USD ($)
Business Acquisition [Line Items]
Accounts receivable included in purchase price	$ 31.4

Goodwill - Changes in Carrying Amounts of Goodwill by Segment (Detail)	9 Months Ended
	Sep. 30, 2012 USD ($)
Goodwill [Line Items]
Balance at December 31, 2011	$ 1,806,237,000
Goodwill acquired	251,800,000
Purchase price allocation adjustments and other	(600,000)
Foreign currency translation adjustments	8,400,000
Balance at September 30, 2012	2,065,772,000
Electronic Instruments Group [Member]
Goodwill [Line Items]
Balance at December 31, 2011	997,700
Goodwill acquired	111,300,000
Purchase price allocation adjustments and other	(600,000)
Foreign currency translation adjustments	3,900,000
Balance at September 30, 2012	1,112,300
Electro-mechanical Group [Member]
Goodwill [Line Items]
Balance at December 31, 2011	808,500
Goodwill acquired	140,500,000
Foreign currency translation adjustments	4,500,000
Balance at September 30, 2012	$ 953,500

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits	$ 33.5	$ 28.5
Total amount of unrecognized tax benefits that would impact tax rate, if recognized	$ 30.9

Income Taxes - Reconciliation of Liability for Uncertain Tax Positions (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2012 USD ($)
Income Tax Contingency [Line Items]
Balance at December 31, 2011	$ 28.5
Additions for tax positions	5.5
Reductions for tax positions	(0.5)
Balance at September 30, 2012	$ 33.5

Financial Instruments - Estimated Fair Values and Recorded Amounts of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Recorded Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	$ (235,433)	$ (135,892)
Long-term debt (including current portion)	(1,136,731)	(1,128,032)
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	(235,433)	(135,892)
Long-term debt (including current portion)	$ (1,362,598)	$ (1,298,503)

Share-Based Compensation - Weighted Average Assumptions Used for Estimating Fair Value of Options Granted (Detail) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	28.40%	26.40%
Expected term (years)	5 years 1 month 6 days	5 years
Risk-free interest rate	0.84%	1.96%
Expected dividend yield	0.47%	0.54%
Black-Scholes-Merton fair value per stock option granted	$ 8.54	$ 7.56

Share-Based Compensation - Total Share-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option expense	$ 2,256	$ 2,095	$ 7,248	$ 6,160
Restricted stock expense	2,106	1,986	7,327	12,196
Total pre-tax expense	4,362	4,081	14,575	18,356
Related tax benefit	(1,399)	(1,333)	(4,957)	(5,872)
Reduction of net income	$ 2,963	$ 2,748	$ 9,618	$ 12,484

Share-Based Compensation - Company's Stock Option Activity and Related Information (Detail) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
	Sep. 30, 2012 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Outstanding, Shares \| shares	8,198
Granted, Shares \| shares	1,386
Exercised, Shares \| shares	(2,160)
Forfeited, Shares \| shares	(101)
Expired, Shares \| shares	(2)
Ending balance, Outstanding, Shares \| shares	7,321
Ending balance, Exercisable, Shares \| shares	4,036
Beginning balance, Outstanding, Weighted Average Exercise Price \| $ / shares	$ 18.50
Granted, Weighted Average Exercise Price \| $ / shares	34.01
Exercised, Weighted Average Exercise Price \| $ / shares	15.63
Forfeited, Weighted Average Exercise Price \| $ / shares	23.32
Expired, Weighted Average Exercise Price \| $ / shares	20.21
Ending balance, Outstanding, Weighted Average Exercise Price \| $ / shares	22.22
Ending balance, Exercisable, Weighted Average Exercise Price \| $ / shares	$ 18.90
Ending balance, Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 2 months 12 days
Ending balance, Exercisable, Weighted Average Remaining Contractual Life (Years)	3 years 3 months 18 days
Ending balance, Outstanding, Aggregate Intrinsic Value \| $	$ 96.9
Ending balance, Exercisable, Aggregate Intrinsic Value \| $	$ 66.8

Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised	$ 37.5
Total fair value of stock options vested	$ 8.9
Stock options outstanding	7,321,000	8,198,000
Total fair value of vested restricted stock	$ 10.0
Nonvested Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future pre-tax compensation expense	$ 16.3
Stock options outstanding	3,300
Weighted average period to recognize expected future pre-tax compensation expense (in years)	Less than two years
Nonvested Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future pre-tax compensation expense	$ 22.3
Weighted average period to recognize expected future pre-tax compensation expense (in years)	Approximately two years
Nonvested restricted stock outstanding	1,310,000	1,414,000

Share-Based Compensation - Non-Vested Restricted Stock Outstanding (Detail) - Nonvested Restricted Shares [Member] shares in Thousands	9 Months Ended
	Sep. 30, 2012 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Outstanding, Shares \| shares	1,414
Granted, Shares \| shares	400
Vested, Shares \| shares	(465)
Forfeited, Shares \| shares	(39)
Ending balance, Outstanding, Shares \| shares	1,310
Beginning balance, Outstanding, Weighted Average Grant Date Fair Value \| $ / shares	$ 22.71
Granted, Weighted Average Grant Date Fair Value \| $ / shares	33.79
Vested, Weighted Average Grant Date Fair Value \| $ / shares	21.80
Forfeited, Weighted Average Grant Date Fair Value \| $ / shares	25.89
Ending balance, Outstanding, Weighted Average Grant Date Fair Value \| $ / shares	$ 26.32

Retirement and Pension Plans - Components of Net Periodic Pension Benefit Expense (Income) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Defined benefit plans:
Service cost	$ 1,568	$ 1,094	$ 4,110	$ 3,278
Interest cost	7,096	7,252	20,645	21,424
Expected return on plan assets	(10,867)	(11,259)	(32,242)	(33,831)
Amortization of net actuarial loss and other	2,852	1,310	8,556	3,585
Pension expense (income)	649	(1,603)	1,069	(5,544)
Other plans:
Defined contribution plans	4,153	3,470	13,850	10,987
Foreign plans and other	1,112	1,537	3,437	3,938
Total other plans	5,265	5,007	17,287	14,925
Total net pension expense	$ 5,914	$ 3,404	$ 18,356	$ 9,381

Product Warranties - Additional Information (Detail)	9 Months Ended
Product Warranties - Additional Information (Detail)	Sep. 30, 2012 yr
Schedule Of Product Warranty Liability [Line Items]
Product warranty period	1

Product Warranties - Changes in Accrued Product Warranty Obligation (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Schedule Of Product Warranty Liability [Line Items]
Balance at the beginning of the period	$ 22,466	$ 18,347
Accruals for warranties issued during the period	8,381	9,450
Settlements made during the period	(7,201)	(7,472)
Warranty accruals related to new businesses and other during the period	3,381	674
Balance at the end of the period	$ 27,027	$ 20,999

Contingencies - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2012 USD ($) site	Dec. 31, 2011 USD ($)
Commitment and Contingencies [Line Items]
Number of non-owned sites Company is named Potentially Responsible Party \| site	15
Number of non-owned sites the Company is identified as a de minimis party \| site	14
Number of non-owned sites Company has reached tentative settlement agreement \| site	10
Number of non-owned sites Company is still working to establish settlement amount \| site	4
Total environmental reserves	$ 23.7	$ 28.0
Reserves related to business acquisition	0.5
Total expenses related to environmental matters	4.8
Reserves related to an owned site acquired	14.8	$ 17.5
Receivables related to HCC for probable recoveries from third-party funds	13.5
Amount for which the Company is indemnified by HCC's former owners	$ 19.0

Reportable Segments - Additional Information (Detail)	9 Months Ended
Reportable Segments - Additional Information (Detail)	Sep. 30, 2012 Segment
Segment Reporting Information [Line Items]
Number of reportable segments	2