Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Schedule of Intangible Assets (Details)

v3.20.1
Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount $ 120,750 $ 120,750
Accumulated Amortization (113,293) (110,500)
Net Carrying Amount 7,457 10,250
Customer relationships    
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount 120,000 120,000
Accumulated Amortization (112,943) (110,169)
Net Carrying Amount $ 7,057 $ 9,831
Weighted- Average Amortization Period (Years) 6 years 6 years
Licenses    
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount $ 750 $ 750
Accumulated Amortization (350) (331)
Net Carrying Amount $ 400 $ 419
Weighted- Average Amortization Period (Years) 10 years 10 years