v3.26.3
S000010412 [Member] Annual Fund Operating Expenses - AB Discovery Value Fund
Jun. 30, 2026
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.75%
Distribution and Service (12b-1) Fees 0.25%
Component1 Other Expenses 0.06%
Component2 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.09%
Expenses (as a percentage of Assets) 1.09%
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.75%
Distribution and Service (12b-1) Fees 1.00%
Component1 Other Expenses 0.06%
Component2 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.09%
Expenses (as a percentage of Assets) 1.84%
Advisor Class  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.75%
Distribution and Service (12b-1) Fees 0.00%
Component1 Other Expenses 0.06%
Component2 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.09%
Expenses (as a percentage of Assets) 0.84%
Class I  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.75%
Distribution and Service (12b-1) Fees 0.00%
Component1 Other Expenses 0.12%
Component2 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.15%
Expenses (as a percentage of Assets) 0.90%
Class Z  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.75%
Distribution and Service (12b-1) Fees 0.00%
Component1 Other Expenses 0.03%
Component2 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.06%
Expenses (as a percentage of Assets) 0.81%
[1]
“Other Expenses” includes acquired fund fees and expenses totaling less than 0.01%.