Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details)

v3.10.0.1
Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount $ 123,368 $ 124,028
Accumulated Amortization (94,630) (69,127)
Net Carrying Amount 28,738 54,901
Customer relationship    
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount 120,000 120,000
Accumulated Amortization (91,756) (66,866)
Net Carrying Amount $ 28,244 $ 53,134
Weighted- Average Amortization Period (Years) 6 years 6 years
Licenses    
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount $ 3,368 $ 3,368
Accumulated Amortization (2,874) (1,601)
Net Carrying Amount $ 494 $ 1,767
Weighted- Average Amortization Period (Years) 5 years 7 months 6 days 5 years 7 months 6 days
Non-compete agreements    
Schedule Of Intangible Assets [Line Items]    
Gross Carrying Amount   $ 660
Accumulated Amortization   (660)
Net Carrying Amount   $ 0
Weighted- Average Amortization Period (Years)   1 year