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Stock-Based Compensation - Schedule of Nonvested Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Wynn Resorts Limited 2014 Omnibus Incentive Plan
Shares:
Nonvested, beginning of period	526,387
Granted	413,697
Vested	(151,808)
Forfeited	(43,825)
Nonvested, end of period	744,451	526,387
Weighted Average Grant Date Fair Value:
Nonvested, beginning of period	$ 127.84
Granted	119.61	$ 170.13	$ 109.28
Vested	117.88
Forfeited	138.78
Nonvested, end of period	123.62	127.84
Weighted average grant date fair value	$ 119.61	$ 170.13	$ 109.28
Fair value of shares vested	$ 19,428	$ 13,024	$ 45,801
Share Award Plan
Shares:
Nonvested, beginning of period	9,753,267
Granted	3,742,418
Vested	(2,420,915)
Forfeited	(1,408,607)
Nonvested, end of period	9,666,163	9,753,267
Weighted Average Grant Date Fair Value:
Nonvested, beginning of period	$ 2.07
Granted	2.43	$ 3.07	$ 2.22
Vested	1.44
Forfeited	2.26
Nonvested, end of period	2.36	2.07
Weighted average grant date fair value	$ 2.43	$ 3.07	$ 2.22
Fair value of shares vested	$ 5,139	$ 12,442	$ 6,884

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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