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Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jul. 31, 2019
Oct. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]          
Contingent consideration revenue target period 18 months        
Payments to acquire businesses, net of cash acquired     $ 12,500 $ 0 $ 8,842
Goodwill $ 5,510   $ 911,113 $ 904,985 $ 910,088
Customer relationships          
Acquired Finite-Lived Intangible Assets [Line Items]          
Amortization period for acquired intangibles 15 years        
PCP Tools          
Acquired Finite-Lived Intangible Assets [Line Items]          
Ownership percentage   100.00%      
Payments to acquire businesses, net of cash acquired   $ 8,800      
Goodwill   5,100      
Business combination, intangible assets   $ 4,500      
Finite-lived intangible asset, useful life (in years)   9 years