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Summary of Significant Accounting Policies - Promotional Allowances (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]      
Total retail value of promotional allowances $ 4,288us-gaap_PromotionalAllowances $ 5,457us-gaap_PromotionalAllowances $ 3,649us-gaap_PromotionalAllowances
Total cost of promotional allowances 3,823nyny_CostOfPromotionalAllowances 4,502nyny_CostOfPromotionalAllowances 3,051nyny_CostOfPromotionalAllowances
Food and beverage [Member]      
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]      
Total retail value of promotional allowances 1,656us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_FoodAndBeverageMember		 1,835us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_FoodAndBeverageMember		 1,605us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_FoodAndBeverageMember
Total cost of promotional allowances 2,206nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_FoodAndBeverageMember		 2,154nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_FoodAndBeverageMember		 1,605nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_FoodAndBeverageMember
Non-subsidized free play [Member]      
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]      
Total retail value of promotional allowances 2,476us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_NonSubsidizedFreePlayMember		 3,106us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_NonSubsidizedFreePlayMember		 1,459us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_NonSubsidizedFreePlayMember
Total cost of promotional allowances 1,461nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_NonSubsidizedFreePlayMember		 1,832nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_NonSubsidizedFreePlayMember		 861nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_NonSubsidizedFreePlayMember
Players club awards [Member]      
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]      
Total retail value of promotional allowances 156us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_PlayersClubAwardsMember		 516us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_PlayersClubAwardsMember		 585us-gaap_PromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_PlayersClubAwardsMember
Total cost of promotional allowances $ 156nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_PlayersClubAwardsMember		 $ 516nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_PlayersClubAwardsMember		 $ 585nyny_CostOfPromotionalAllowances
/ us-gaap_ProductOrServiceAxis
= nyny_PlayersClubAwardsMember