Intangible Assets - Schedule of Goodwill, Customer Relationships and Trademarks (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 120,343	$ 120,343
Total	32,855
Customer relationships—Acquired
Finite-Lived Intangible Assets [Line Items]
Cost	64,083	64,083
Accumulated amortization	(42,760)	(40,231)
Total	21,323	23,852
Customer relationships—Other
Finite-Lived Intangible Assets [Line Items]
Cost	17,056	17,056
Accumulated amortization	(10,955)	(9,534)
Total	6,101	7,522
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	7,570	8,502
Accumulated amortization	(2,139)	(2,794)
Total	$ 5,431	$ 5,708