Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 625,313	$ 606,338
Accumulated depreciation	(308,434)	(300,767)
Property and equipment, net	316,879	305,571
Land and land interests
Property Plant And Equipment [Line Items]
Gross property and equipment	32,333	32,544
Buildings and leasehold improvements
Property Plant And Equipment [Line Items]
Gross property and equipment	233,069	222,118
Equipment and other
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 359,911	$ 351,676