S000077139 [Member] Expense Example - Putnam Emerging Markets ex-China ETF - -	Apr. 30, 2026 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 72
Expense Example, with Redemption, 3 Years	227
Expense Example, with Redemption, 5 Years	395
Expense Example, with Redemption, 10 Years	$ 881

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