v3.26.1
Summary of Significant Accounting Policies (Details) - EBP 002 - Peoples Bancorp Inc. Common Stock Fund Units - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Accounting Standard Update and Change in Accounting Principle [Line Items]    
Investment, number of shares (in shares) 59,985 70,170
Amount held in cash $ 91,892 $ 108,279
Minimum    
EBP, Accounting Standard Update and Change in Accounting Principle [Line Items]    
Investment, percentage held in cash for liquidity 3.00%  
Maximum    
EBP, Accounting Standard Update and Change in Accounting Principle [Line Items]    
Investment, percentage held in cash for liquidity 5.00%