Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Gross revenue	$ 102,861	$ 113,721	$ 207,420	$ 223,282
Promotional allowances	(8,203)	(12,210)	(17,012)	(24,793)
Net revenue	94,658	101,511	190,408	198,489
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Adjusted EBITDA	19,376	17,591	39,578	35,813
Depreciation and Amortization	(7,312)	(7,205)	(14,696)	(14,368)
Share-Based Compensation	(326)	(505)	(700)	(667)
Write Downs, Reserves and Recoveries	91	204	39	69
Operating income	11,829	10,085	24,221	20,847
Total assets by reportable segment	604,574		604,574		$ 602,264
Cash paid for capital expenditures by reportable segment	4,119	3,593	8,601	6,718
Operating Segments
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Total assets by reportable segment	478,252		478,252		489,387
Cash paid for capital expenditures by reportable segment	4,104	3,282	7,740	6,119
Nevada
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Gross revenue	61,119	68,704	122,900	133,754
Promotional allowances	(5,786)	(8,378)	(11,682)	(17,166)
Net revenue	55,333	60,326	111,218	116,588
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Adjusted EBITDA	12,120	10,915	25,014	21,437
Depreciation and Amortization	(3,649)	(3,698)	(7,300)	(7,386)
Share-Based Compensation	0	0	0	0
Write Downs, Reserves and Recoveries	105	197	70	120
Operating income	8,576	7,414	17,784	14,171
Total assets by reportable segment	218,749		218,749		224,731
Cash paid for capital expenditures by reportable segment	2,748	854	5,223	2,999
Midwest
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Gross revenue	32,189	34,473	65,310	67,738
Promotional allowances	(1,744)	(2,629)	(3,758)	(5,167)
Net revenue	30,445	31,844	61,552	62,571
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Adjusted EBITDA	10,388	10,560	21,062	20,129
Depreciation and Amortization	(2,012)	(1,898)	(4,042)	(3,793)
Share-Based Compensation	0	0	0	0
Write Downs, Reserves and Recoveries	(14)	0	(7)	0
Operating income	8,362	8,662	17,013	16,336
Total assets by reportable segment	203,691		203,691		207,414
Cash paid for capital expenditures by reportable segment	1,178	1,385	1,932	1,829
Colorado
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Gross revenue	9,553	10,544	19,210	21,790
Promotional allowances	(673)	(1,203)	(1,572)	(2,460)
Net revenue	8,880	9,341	17,638	19,330
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Adjusted EBITDA	1,474	969	2,618	2,875
Depreciation and Amortization	(1,421)	(1,297)	(2,879)	(2,566)
Share-Based Compensation	0	0	0	0
Write Downs, Reserves and Recoveries	0	0	0	(58)
Operating income	53	(328)	(261)	251
Total assets by reportable segment	55,812		55,812		57,242
Cash paid for capital expenditures by reportable segment	178	1,043	585	1,291
Corporate and other
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Adjusted EBITDA	(4,606)	(4,853)	(9,116)	(8,628)
Depreciation and Amortization	(230)	(312)	(475)	(623)
Share-Based Compensation	(326)	(505)	(700)	(667)
Write Downs, Reserves and Recoveries		7	(24)	7
Operating income	(5,162)	(5,663)	(10,315)	(9,911)
Total assets by reportable segment	126,322		126,322		$ 112,877
Cash paid for capital expenditures by reportable segment	$ 15	$ 311	$ 861	$ 599