Statement of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash paid during the period for:
Interest	$ 81,647	$ 70,326
Income taxes	(6,046)	(17,408)
Non-cash investing activities:
Leasehold improvements paid by lessor	20,121	28,431
Vehicles transferred to property and equipment from inventory	575	780
Derecognition of non-tenant improvements		7,018
Capital expenditures in accounts payable and accrued liabilities	4,530	6,051
Non-cash financing activities:
Par value of Class A common stock issued in exchange for common units in CWGS, LLC		3
Par value of Class A common stock issued for vested restricted stock units	$ 2	$ 1