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Document and Entity Information
Jan. 20, 2025
Document And Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jan. 20, 2025
Entity Registrant Name BLACKROCK MUNIYIELD NEW YORK QUALITY FUND, INC.
Entity Incorporation State Country Code MD
Entity File Number 811-06500
Entity Tax Identification Number 22-3144223
Entity Address Address Line 1 50 Hudson Yards
Entity Address City Or Town New York
Entity Address State Or Province NY
Entity Address Postal Zip Code 10001
City Area Code 212
Local Phone Number 810-5300
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Central Index Key 0000882150
Amendment Flag false