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Goodwill and Intangible Assets - Finite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Intangible Assets [Line Items]    
Gross carrying amount $ 286,417 $ 286,448
Accumulated amortization (123,806) (117,482)
Foreign currency exchange rate fluctuations (795) (755)
Net carrying amount 161,816 168,211
Customer relationships    
Intangible Assets [Line Items]    
Gross carrying amount 187,889 187,889
Accumulated amortization (67,464) (64,254)
Foreign currency exchange rate fluctuations (816) (777)
Net carrying amount $ 119,609 $ 122,858
Customer relationships | Minimum    
Intangible Assets [Line Items]    
Useful life (in years) 10 years 10 years
Customer relationships | Maximum    
Intangible Assets [Line Items]    
Useful life (in years) 30 years 30 years
Acquired technology    
Intangible Assets [Line Items]    
Gross carrying amount $ 86,029 $ 86,029
Accumulated amortization (47,600) (44,851)
Foreign currency exchange rate fluctuations 6 6
Net carrying amount $ 38,435 $ 41,184
Acquired technology | Minimum    
Intangible Assets [Line Items]    
Useful life (in years) 5 years 5 years
Acquired technology | Maximum    
Intangible Assets [Line Items]    
Useful life (in years) 20 years 20 years
Backlog    
Intangible Assets [Line Items]    
Gross carrying amount $ 1,150 $ 1,150
Accumulated amortization (1,150) (1,078)
Foreign currency exchange rate fluctuations 0 0
Net carrying amount $ 0 $ 72
Useful life (in years) 4 years 4 years
Trade names    
Intangible Assets [Line Items]    
Gross carrying amount $ 7,850 $ 7,850
Accumulated amortization (5,985) (5,794)
Foreign currency exchange rate fluctuations 14 14
Net carrying amount $ 1,879 $ 2,070
Trade names | Minimum    
Intangible Assets [Line Items]    
Useful life (in years) 1 year 1 year
Trade names | Maximum    
Intangible Assets [Line Items]    
Useful life (in years) 12 years 12 years
Patents    
Intangible Assets [Line Items]    
Gross carrying amount $ 2,899 $ 2,930
Accumulated amortization (1,507) (1,455)
Foreign currency exchange rate fluctuations 1 2
Net carrying amount $ 1,393 $ 1,477
Patents | Minimum    
Intangible Assets [Line Items]    
Useful life (in years) 2 years 2 years
Patents | Maximum    
Intangible Assets [Line Items]    
Useful life (in years) 20 years 20 years
Non-compete agreements    
Intangible Assets [Line Items]    
Gross carrying amount $ 600 $ 600
Accumulated amortization (100) (50)
Foreign currency exchange rate fluctuations 0 0
Net carrying amount $ 500 $ 550
Useful life (in years) 3 years 3 years