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Goodwill and Other Intangible Assets - Intangibles and Amortization Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount $ 2,277,349 $ 2,075,215  
Finite-Lived Intangible Assets, Accumulated Amortization 1,290,419 1,116,854  
Indefinite-lived Intangible Assets (Excluding Goodwill) 96,842 96,653  
Intangible Assets, Gross (Excluding Goodwill) 2,374,191 2,171,868  
Finite-Lived Intangible Assets, Net 986,930 958,361  
Intangible Assets, Net (Excluding Goodwill) 1,083,772 1,055,014  
Acquired intangible assets, net 134,049    
Amortization expense 139,043 138,947 $ 143,868
Acquisition-related amortization expense 137,071 136,963 $ 142,170
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]      
Next 12 Months 139,794    
+2 Years 125,272    
+3 Years 115,224    
+4 Years 110,524    
+5 Years 105,761    
Customer Intangibles [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 1,559,771 1,410,636  
Finite-Lived Intangible Assets, Accumulated Amortization 834,798 714,566  
Finite-Lived Intangible Assets, Net 724,973 696,070  
Trademarks [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 233,205 218,064  
Finite-Lived Intangible Assets, Accumulated Amortization 103,907 85,791  
Finite-Lived Intangible Assets, Net 129,298 132,273  
Acquired intangible assets, net 9,614    
Patents [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 163,299 159,376  
Finite-Lived Intangible Assets, Accumulated Amortization 141,182 133,677  
Finite-Lived Intangible Assets, Net 22,117 25,699  
Unpatented Technologies [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 180,947 154,505  
Finite-Lived Intangible Assets, Accumulated Amortization 113,404 99,276  
Finite-Lived Intangible Assets, Net 67,543 55,229  
Acquired intangible assets, net 21,125    
Distributor Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 87,028 82,779  
Finite-Lived Intangible Assets, Accumulated Amortization 51,611 44,202  
Finite-Lived Intangible Assets, Net 35,417 38,577  
Drawings and Manuals [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 29,198 27,500  
Finite-Lived Intangible Assets, Accumulated Amortization 26,193 22,403  
Finite-Lived Intangible Assets, Net 3,005 5,097  
Other Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount 23,901 22,355  
Finite-Lived Intangible Assets, Accumulated Amortization 19,324 16,939  
Finite-Lived Intangible Assets, Net 4,577 5,416  
Trademarks [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization 0 0  
Indefinite-lived Intangible Assets (Excluding Goodwill) $ 96,842 $ 96,653