Interest Rate Swaps - Additional Information (Detail)	12 Months Ended				12 Months Ended
	Dec. 31, 2014 Wynn Macau Swap Two of the Swap Agreements USD ($) Agreement	Dec. 31, 2014 Wynn Macau Swap Two of the Swap Agreements HKD	Dec. 31, 2014 Wynn Macau Swap Two of the Swap Agreements Minimum	Dec. 31, 2014 Wynn Macau Swap Two of the Swap Agreements Maximum	Dec. 31, 2014 Wynn Macau Swap Interest Rate Swap 3 USD ($) Agreement	Dec. 31, 2014 Wynn Macau Swap Interest Rate Swap 3 Minimum	Dec. 31, 2014 Wynn Macau Swap Interest Rate Swap 3 Maximum	Dec. 31, 2014 Fair Value, Measurements, Recurring USD ($)	Dec. 31, 2013 Fair Value, Measurements, Recurring USD ($)
Interest Rate Swaps
Interest rate swap assets (liability) included in deposits and other assets, fair value								$ 5,915,000	$ 10,308,000
Number of interest rate swap agreements	3	3			1
Interest rate swap fixed interest rate	0.73%	0.73%	2.48%	3.23%	0.68%	2.43%	3.18%
Interest rate swap notional amount	$ 509,400,000	3,950,000,000			$ 243,800,000
Interest rate swap maturity date	Jul. 01, 2017	Jul. 01, 2017			Jul. 01, 2017