v3.26.1
Basis of Presentation and Accounting Policies (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Jan. 01, 2026
Synovus Financial Corp    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Expected allowance for credit losses   $ 478
Bankers Healthcare Group, LLC | Pinnacle Bank    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Ownership percentage 49.00%