Note 14 - Segment Information - Reconciliation of Total Reportable Segment Adjusted EBITDAR to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total Reportable Segment Adjusted EBITDAR									$ 980,625	$ 763,227	$ 668,977
Corporate expense									105,139	104,201	88,148
Adjusted EBITDAR									896,688	681,289	595,931
Deferred rent									979	1,100	1,267
Master lease rent expense									97,723	20,682	0
Depreciation and amortization									276,569	229,979	217,522
Share-based compensation expense									25,202	25,379	17,413
Project development, preopening and writedowns									21,728	45,698	14,454
Impairment of assets									0	993	(426)
Other operating items, net									1,919	2,174	1,900
Total other operating costs and expenses									424,120	326,005	252,130
Operating income	$ 114,859	$ 113,391	$ 126,692	$ 117,626	$ 94,684	$ 69,568	$ 96,258	$ 94,774	472,568	355,284	343,801
Las Vegas Locals [Member]
Total Reportable Segment Adjusted EBITDAR									283,030	274,344	249,906
Downtown Las Vegas [Member]
Total Reportable Segment Adjusted EBITDAR									62,413	56,517	54,613
Midwest and South [Member]
Total Reportable Segment Adjusted EBITDAR									635,182	432,366	364,458
Corporate Segment [Member]
Corporate expense									$ (83,937)	$ (81,938)	$ (73,046)