Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Intangible Assets (Details)

v3.21.1
Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]      
Cost $ 250,971   $ 244,364
Accumulated Amortization (141,243)   (136,955)
Accumulated Impairment Loss (3,814)   (3,814)
Net Intangible Assets 105,914   103,595
Amortization of intangible assets 4,300 $ 4,700  
Contract and customer-related      
Finite-Lived Intangible Assets [Line Items]      
Cost 219,801   213,194
Accumulated Amortization (114,635)   (110,917)
Accumulated Impairment Loss (3,814)   (3,814)
Net Intangible Assets 101,352   98,463
Acquired technologies      
Finite-Lived Intangible Assets [Line Items]      
Cost 12,400   12,400
Accumulated Amortization (11,069)   (10,787)
Accumulated Impairment Loss 0   0
Net Intangible Assets 1,331   1,613
Trade names      
Finite-Lived Intangible Assets [Line Items]      
Cost 18,770   18,770
Accumulated Amortization (15,539)   (15,251)
Accumulated Impairment Loss 0   0
Net Intangible Assets $ 3,231   $ 3,519