Condensed Consolidated Statement Of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Total Wynn Resorts, Ltd. stockholders' equity	Common stock	Treasury stock	Additional paid-in capital	Accumulated other comprehensive loss	Retained earnings	Noncontrolling interests
Beginning balance at Dec. 31, 2018	$ 1,814,789	$ 2,034,123	$ 1,221	$ (1,344,012)	$ 2,457,079	$ (1,950)	$ 921,785	$ (219,334)
Beginning balance (in shares) at Dec. 31, 2018			107,232,026
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	159,731	104,872					104,872	54,859
Currency translation adjustment	(888)	(641)				(641)		(247)
Exercise of stock options	4,064	4,064	$ 1		4,063
Exercise of stock options (in shares)			77,690
Issuance of restricted stock	15,133	14,348	$ 4		14,344			785
Issuance of restricted stock (in shares)			396,596
Cancellation of restricted stock	0
Cancellation of restricted stock (in shares)			(1,045)
Shares repurchased by the Company and held as treasury shares	(5,401)	(5,401)		(5,401)
Shares repurchased by the Company and held as treasury shares (in shares)			(44,818)
Cash dividends declared	(80,668)	(80,685)					(80,685)	17
Stock-based compensation	8,483	7,540			7,540			943
Ending balance at Mar. 31, 2019	1,915,243	2,078,220	$ 1,226	(1,349,413)	2,483,026	(2,591)	945,972	(162,977)
Ending balance (in shares) at Mar. 31, 2019			107,660,449
Beginning balance at Dec. 31, 2019	1,541,472	1,743,045	$ 1,228	(1,410,998)	2,512,676	(1,679)	641,818	(201,573)
Beginning balance (in shares) at Dec. 31, 2019			107,363,943
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(450,253)	(402,037)					(402,037)	(48,216)
Currency translation adjustment	1,015	732				732		283
Issuance of restricted stock	6,721	6,092	$ 6		6,086			629
Issuance of restricted stock (in shares)			620,745
Cancellation of restricted stock	0		$ 0		0
Cancellation of restricted stock (in shares)			(55,570)
Shares repurchased by the Company and held as treasury shares	(5,527)	(5,527)		(5,527)
Shares repurchased by the Company and held as treasury shares (in shares)			(44,955)
Cash dividends declared	(107,501)	(107,515)					(107,515)	14
Distribution to non-controlling interest	(998)							(998)
Stock-based compensation	7,551	7,300			7,300			251
Ending balance at Mar. 31, 2020	$ 992,480	$ 1,242,090	$ 1,234	$ (1,416,525)	$ 2,526,062	$ (947)	$ 132,266	$ (249,610)
Ending balance (in shares) at Mar. 31, 2020			107,884,163