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Commitments and Contingencies Commitments (Details)
$ in Thousands
Jun. 30, 2025
USD ($)
Lending related commitments [Line Items]  
Unused Commitments to Extend Credit $ 5,590,367
Commitments to fund loans  
Lending related commitments [Line Items]  
Unused Commitments to Extend Credit 344,523
Unfunded commitments under lines of credit  
Lending related commitments [Line Items]  
Unused Commitments to Extend Credit 5,055,476
Commercial and standby letters of credit  
Lending related commitments [Line Items]  
Unused Commitments to Extend Credit $ 190,368