v3.26.3
S000010352 [Member] Shareholder Fees - AB New York Portfolio
May 31, 2026
Class A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 3.00%
Maximum Deferred Sales Charge (as a percentage) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Class C  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage) 1.00% [1]
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Advisor Class  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
[1]
For Class C shares, the contingent deferred sales charge, or CDSC, is 0% after the first year. Class C shares automatically convert to Class A shares after eight years.