Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 1,918,829		$ 1,918,829		$ 1,936,645
Accumulated amortization	808,531		808,531		733,043
Amortization expense	39,619	$ 38,009	79,593	$ 76,596
Intangible assets, net	1,276,018		1,276,018		1,369,520
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	137,462		137,462		138,650
Accumulated amortization	39,727		39,727		34,097
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	148,902		148,902		150,404
Accumulated amortization	111,615		111,615		108,484
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,416,785		1,416,785		1,429,906
Accumulated amortization	541,202		541,202		484,449
Unpatented Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	91,507		91,507		92,480
Accumulated amortization	50,925		50,925		45,812
Drawings and Manuals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	35,238		35,238		36,377
Accumulated amortization	14,516		14,516		13,087
Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	64,614		64,614		64,614
Accumulated amortization	35,994		35,994		34,377
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	24,321		24,321		24,214
Accumulated amortization	$ 14,552		$ 14,552		$ 12,737