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Property Charges and Other - Property Charges and Other (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Other Income and Expenses [Abstract]      
Net loss on assets abandoned/retired for remodel or sold $ 6,975wynn_NetLossOnAssetsAbandonedRetiredForRemodelOrSales $ 7,358wynn_NetLossOnAssetsAbandonedRetiredForRemodelOrSales $ 29,524wynn_NetLossOnAssetsAbandonedRetiredForRemodelOrSales
Donation to University of Macau Foundation 3,462wynn_DonationPaymentsMadeOrAccruedDuringPeriod 3,780wynn_DonationPaymentsMadeOrAccruedDuringPeriod 4,083wynn_DonationPaymentsMadeOrAccruedDuringPeriod
Loss on contract termination 0us-gaap_GainLossOnContractTermination 6,000us-gaap_GainLossOnContractTermination 315us-gaap_GainLossOnContractTermination
Loss on show cancellation 0wynn_LossOnShowCancellation 0wynn_LossOnShowCancellation 6,056wynn_LossOnShowCancellation
Property charges and other $ 10,437wynn_ProjectAbandonmentCosts $ 17,138wynn_ProjectAbandonmentCosts $ 39,978wynn_ProjectAbandonmentCosts