Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangibles - Customer Relationships (Details)

v3.20.4
Goodwill and Intangibles - Customer Relationships (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Finite lived intangible assets    
Amortization period 21 years  
Finite lived intangible assets rollforward    
Balance - beginning of period $ 1,498,119  
Amortization of customer relationships (70,672) $ (57,010)
Impairment   (11,871)
Balance - end of period 1,427,447 1,498,119
Customer relationships    
Finite lived intangible assets rollforward    
Balance - beginning of period 1,498,119  
Customer relationships acquired   1,567,000
Amortization of customer relationships (70,672) (57,010)
Impairment   (11,871)
Balance - end of period $ 1,427,447 $ 1,498,119