Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property and Equipment [Line Items]
Property and equipment, gross	$ 513,900	$ 518,900
Less: accumulated depreciation and amortization	(294,300)	(277,700)
Property and equipment, net	219,580	241,229
Depreciation expense on property equipment	22,800	22,700	$ 23,100
Properties under capital lease
Property and Equipment [Line Items]
Property and equipment, gross	57,800	59,200
Buildings and improvements
Property and Equipment [Line Items]
Property and equipment, gross	57,900	58,700
Leaseholds and improvements
Property and Equipment [Line Items]
Property and equipment, gross	256,400	258,300
Land
Property and Equipment [Line Items]
Property and equipment, gross	82,200	78,400
Construction in progress
Property and Equipment [Line Items]
Property and equipment, gross	800	5,100
Properties under capital lease
Property and Equipment [Line Items]
Property and equipment, gross	58,800	59,200
Less: accumulated depreciation and amortization	$ (38,800)	$ (36,800)