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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 128,920 $ 126,983
Accumulated Amortization 96,367 90,533
Net Carrying Amount 32,553 36,450
Intangible assets, gross carrying amount 134,020 132,083
Intangible assets, Net Carrying Amount 37,653 41,550
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, non-amortizing intangible assets 5,100 5,100
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 113,937 111,556
Accumulated Amortization 89,837 85,180
Net Carrying Amount 24,100 26,376
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 11,476 11,809
Accumulated Amortization 3,814 2,768
Net Carrying Amount 7,662 9,041
Acquired software and other    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 3,507 3,618
Accumulated Amortization 2,716 2,585
Net Carrying Amount $ 791 $ 1,033