v3.26.3
Prospectus 2 [Member] Shareholder Fees - Prospectus 2 - PUTNAM MORTGAGE OPPORTUNITIES FUND - CLASS I
May 31, 2026
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%