Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Total Wynn Resorts,  Limited stockholders' equity	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2016			101,799,471
Beginning balance at Dec. 31, 2016	$ 257,881	$ 157,949	$ 1,150	$ (1,166,697)	$ 1,226,915	$ 1,484	$ 95,097	$ 99,932
Net income	889,254	747,181					747,181	142,073
Currency translation adjustment	(3,832)	(2,766)				(2,766)		(1,066)
Change in net unrealized gain (loss) on investment securities	(563)	(563)				(563)		0
Redemption Note settlement	0
Exercise of stock options (in shares)			661,800
Exercise of stock options	62,209	61,995	$ 7		61,988			214
Issuance of restricted stock (in shares)			706,341
Issuance of restricted stock	$ 19,225	18,572	$ 7		18,565			653
Cancellation of restricted stock (in shares)			(13,333)
Cancellation of restricted stock			$ 0		0
Shares repurchased by the company and held as treasury shares (in shares)	(148,413)		(148,413)
Shares repurchased by the company and held as treasury shares	$ (17,771)	(17,771)		(17,771)
Shares of subsidiary repurchased for share award plan	(392)	(283)			(283)			(109)
Sale of ownership interest in a subsidiary, net of income tax expense	162,497	149,259			149,259			13,238
Distribution to noncontrolling interest	(11,436)							(11,436)
Cash dividends declared	(321,083)	(204,515)					(204,515)	(116,568)
Stock-based compensation	42,250	38,677			38,677			3,573
Ending balance (in shares) at Dec. 31, 2017			103,005,866
Ending balance at Dec. 31, 2017	1,078,350	947,846	$ 1,164	(1,184,468)	1,497,928	(1,845)	635,067	130,504
Net income	803,084	572,430					572,430	230,654
Currency translation adjustment	(1,936)	(1,397)				(1,397)		(539)
Change in net unrealized gain (loss) on investment securities	1,292	1,292				1,292		0
Redemption Note settlement	9,211	9,211				9,211
Exercise of stock options (in shares)			261,470
Exercise of stock options	21,971	21,465	$ 2		21,463			506
Issuance of common stock (in shares)			5,300,000
Issuance of common stock	915,240	915,240	$ 53		915,187
Issuance of restricted stock (in shares)			288,270
Issuance of restricted stock	$ 1,799	1,298	$ 3		1,295			501
Cancellation of restricted stock (in shares)			(125,908)
Cancellation of restricted stock			$ (1)		1
Shares repurchased by the company and held as treasury shares (in shares)	(19,120)		(1,497,672)
Shares repurchased by the company and held as treasury shares	$ (159,544)	(159,544)		(159,544)
Shares of subsidiary repurchased for share award plan	(6,232)	(4,497)			(4,497)			(1,735)
Distribution to noncontrolling interest	(305,372)							(305,400)
Cash dividends declared	(571,451)	(294,923)					(294,923)	(276,528)
Stock-based compensation	28,377	25,702			25,702			2,675
Ending balance (in shares) at Dec. 31, 2018			107,232,026
Ending 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)
Net income	311,378	122,985					122,985	188,393
Currency translation adjustment	376	271				271		105
Change in net unrealized gain (loss) on investment securities	0
Redemption Note settlement	0
Exercise of stock options (in shares)			293,690
Exercise of stock options	14,696	14,696	$ 3		14,693			0
Issuance of restricted stock (in shares)			472,480
Issuance of restricted stock	15,133	14,348	$ 5		14,343			785
Cancellation of restricted stock (in shares)			(43,825)
Cancellation of restricted stock	$ 0		$ (1)		1
Shares repurchased by the company and held as treasury shares (in shares)	(176,989)		(590,428)
Shares repurchased by the company and held as treasury shares	$ (66,986)	(66,986)		(66,986)
Shares of subsidiary repurchased for share award plan	(5,384)	(3,885)			(3,885)			(1,499)
Distribution to noncontrolling interest	(7,745)							(7,745)
Cash dividends declared	(568,787)	(402,952)					(402,952)	(165,835)
Stock-based compensation	34,002	30,445			30,445			3,557
Ending balance (in shares) at Dec. 31, 2019			107,363,943
Ending 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)