Goodwill and Other Intangible Assets - Intangibles and Amortization Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Document Fiscal Year Focus	2017
Gross carrying amount	$ 2,710,266,000	$ 2,685,675,000
Intangible Assets, Gross (Excluding Goodwill)	2,810,666,000	2,851,201,000
Finite-Lived Intangible Assets, Accumulated Amortization	1,200,739,000	1,048,278,000
Finite-Lived Intangible Assets, Net	1,509,527,000	1,637,397,000
Intangible Assets, Net (Excluding Goodwill)	1,609,927,000	1,802,923,000
Acquired intangible assets, net	12,707,000
Amortization expense	202,955,000	185,244,000	$ 159,573,000
Acquisition-related amortization expense	201,695,000	183,835,000	$ 157,849,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2017	193,566,000
2018	186,346,000
2019	175,119,000
2020	167,253,000
2021	152,105,000
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,977,776,000	1,942,974,000
Finite-Lived Intangible Assets, Accumulated Amortization	836,102,000	718,135,000
Finite-Lived Intangible Assets, Net	1,141,674,000	1,224,839,000
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	253,934,000	246,619,000
Finite-Lived Intangible Assets, Accumulated Amortization	76,344,000	56,455,000
Finite-Lived Intangible Assets, Net	177,590,000	190,164,000
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	160,237,000	157,491,000
Finite-Lived Intangible Assets, Accumulated Amortization	130,771,000	119,828,000
Finite-Lived Intangible Assets, Net	29,466,000	37,663,000
Unpatented Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	162,613,000	155,752,000
Finite-Lived Intangible Assets, Accumulated Amortization	80,984,000	64,648,000
Finite-Lived Intangible Assets, Net	81,629,000	91,104,000
Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	85,794,000	113,463,000
Finite-Lived Intangible Assets, Accumulated Amortization	32,092,000	44,914,000
Finite-Lived Intangible Assets, Net	53,702,000	68,549,000
Drawings and Manuals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	35,806,000	37,744,000
Finite-Lived Intangible Assets, Accumulated Amortization	22,876,000	23,114,000
Finite-Lived Intangible Assets, Net	12,930,000	14,630,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	34,106,000	31,632,000
Finite-Lived Intangible Assets, Accumulated Amortization	21,570,000	21,184,000
Finite-Lived Intangible Assets, Net	12,536,000	10,448,000
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	$ 0	$ 0