Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Intangible Assets Subject to Amortization (Details)

v3.21.1
Intangible Assets - Intangible Assets Subject to Amortization (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 648,840 $ 697,527
Accumulated Amortization (23,884) (23,478)
Net carrying amount 624,956 674,049
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 515,000 560,212
Accumulated Amortization (14,975) (13,687)
Net carrying amount 500,025 546,525
Other amortizable intangibles    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 133,840 137,315
Accumulated Amortization (8,909) (9,791)
Net carrying amount $ 124,931 $ 127,524