v3.26.3
S000010355 [Member] Expense Example - AB Massachusetts Portfolio
May 31, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 376
Expense Example, with Redemption, 3 Years 566
Expense Example, with Redemption, 5 Years 771
Expense Example, with Redemption, 10 Years 1,363
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 255 [1]
Expense Example, with Redemption, 3 Years 510
Expense Example, with Redemption, 5 Years 889
Expense Example, with Redemption, 10 Years 1,751
Advisor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 53
Expense Example, with Redemption, 3 Years 195
Expense Example, with Redemption, 5 Years 349
Expense Example, with Redemption, 10 Years $ 798
[1]
If you did not redeem your shares at the end of the period, your expenses would be decreased by approximately $100.