Goodwill and Intangible Assets - Schedule of Carrying Value of Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Total intangible assets, Cost	$ 190,642	$ 34,501
Less: Accumulated amortization	(30,058)	(23,971)
Total intangible assets, net	160,584	10,530
Trade Names
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Indefinite life intangible assets, Cost	2,000
Customer Lists
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Cost	188,642	34,501
Finite life intangible assets, Accumulated Amortization	$ (30,058)	$ (23,971)