Acquisitions - Business Combination - Summary of Allocation of Purchase Price to Assets Acquired and Liabilities Assumed Including the Measurement Period Adjustments (Details) - ILX and Castex - USD ($) $ in Thousands	Jun. 30, 2020	Feb. 28, 2020
Business Acquisition [Line Items]
Current assets	$ 6,541	$ 10,969
Property and equipment	496,376	489,796
Other long-term assets	148	148
Current liabilities	(8,733)	(7,129)
Other long-term liabilities	(41,166)	(44,489)
Allocated purchase price	453,166	$ 449,295
Adjustments
Business Acquisition [Line Items]
Current assets	(4,428)
Property and equipment	6,580
Current liabilities	(1,604)
Other long-term liabilities	3,323
Allocated purchase price	$ 3,871