Assets Held for Sale - Schedule of Information of Net Operating Revenues and Net Income (Loss) (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Mountaineer
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net operating revenues	$ 32,707	$ 31,566	$ 62,873	$ 61,256
Net income (loss)	2,414	870	4,037	849
Cape Girardeau
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net operating revenues	14,340	15,288	29,742	31,205
Net income (loss)	1,578	1,809	3,692	3,556
Caruthersville
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net operating revenues	8,651	8,927	17,577	17,725
Net income (loss)	$ 1,907	1,591	3,687	3,080
Presque Isle Downs
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net operating revenues		36,876	3,235	70,053
Net income (loss)		3,045	(62)	4,166
Nemacolin
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net operating revenues		8,439	4,836	16,933
Net income (loss)		$ (350)	$ (754)	$ (468)