Goodwill and Other Intangible Assets - Intangibles and Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 24,056
Gross carrying amount	2,046,063	$ 2,063,100
Intangible Assets, Gross (Excluding Goodwill)	2,142,731	2,159,900
Finite-Lived Intangible Assets, Accumulated Amortization	1,008,475	877,276
Finite-Lived Intangible Assets, Net	1,037,588	1,185,824
Intangible Assets, Net (Excluding Goodwill)	1,134,256	1,282,624
Amortization expense	143,868	150,171	$ 130,171
Acquisition-related amortization expense	142,170	148,147	$ 128,007
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2017	131,936
2018	123,425
2019	117,381
2020	103,917
2021	93,854
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,395,742	1,405,361
Finite-Lived Intangible Assets, Accumulated Amortization	645,305	559,447
Finite-Lived Intangible Assets, Net	750,437	845,914
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	214,774	217,621
Finite-Lived Intangible Assets, Accumulated Amortization	72,305	58,523
Finite-Lived Intangible Assets, Net	142,469	159,098
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	144,302	145,577
Finite-Lived Intangible Assets, Accumulated Amortization	128,254	123,135
Finite-Lived Intangible Assets, Net	16,048	22,442
Unpatented Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	155,380	152,913
Finite-Lived Intangible Assets, Accumulated Amortization	85,560	71,284
Finite-Lived Intangible Assets, Net	69,820	81,629
Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	82,970	85,794
Finite-Lived Intangible Assets, Accumulated Amortization	37,943	32,092
Finite-Lived Intangible Assets, Net	45,027	53,702
Drawings and Manuals [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	31,849	32,739
Finite-Lived Intangible Assets, Accumulated Amortization	23,273	20,767
Finite-Lived Intangible Assets, Net	8,576	11,972
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	21,046	23,095
Finite-Lived Intangible Assets, Accumulated Amortization	15,835	12,028
Finite-Lived Intangible Assets, Net	5,211	11,067
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	$ 0	$ 0