Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 1,909,973		$ 1,936,645
Accumulated amortization	766,507		733,043
Amortization expense	39,974us-gaap_AmortizationOfIntangibleAssets	38,587us-gaap_AmortizationOfIntangibleAssets
Intangible assets, net	1,309,135		1,369,520
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	136,706		138,650
Accumulated amortization	36,572		34,097
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	148,411		150,404
Accumulated amortization	109,239		108,484
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,410,468		1,429,906
Accumulated amortization	510,376		484,449
Unpatented Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	90,897		92,480
Accumulated amortization	48,160		45,812
Drawings and Manuals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	34,584		36,377
Accumulated amortization	13,416		13,087
Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	64,614		64,614
Accumulated amortization	35,185		34,377
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	24,293		24,214
Accumulated amortization	$ 13,559		$ 12,737

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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