v3.25.2
S000077138 [Member] Annual Fund Operating Expenses - Putnam BioRevolution ETF - -
Apr. 30, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.70%