Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Intangible Assets (Details)

v3.21.2
Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]          
Cost $ 271,622   $ 271,622   $ 244,364
Accumulated Amortization (150,767)   (150,767)   (136,955)
Accumulated Impairment Loss (3,814)   (3,814)   (3,814)
Net Intangible Assets 117,041   117,041   103,595
Amortization of intangible assets 4,900 $ 4,200 13,800 $ 13,300  
Contract and customer-related          
Finite-Lived Intangible Assets [Line Items]          
Cost 240,452   240,452   213,194
Accumulated Amortization (123,019)   (123,019)   (110,917)
Accumulated Impairment Loss (3,814)   (3,814)   (3,814)
Net Intangible Assets 113,619   113,619   98,463
Acquired technologies          
Finite-Lived Intangible Assets [Line Items]          
Cost 12,400   12,400   12,400
Accumulated Amortization (11,633)   (11,633)   (10,787)
Accumulated Impairment Loss 0   0   0
Net Intangible Assets 767   767   1,613
Trade names          
Finite-Lived Intangible Assets [Line Items]          
Cost 18,770   18,770   18,770
Accumulated Amortization (16,115)   (16,115)   (15,251)
Accumulated Impairment Loss 0   0   0
Net Intangible Assets $ 2,655   $ 2,655   $ 3,519