v3.26.1
Contractual Obligations and Off-Balance Sheet Items - Summary of Commitments Associated with Outstanding Standby Letters of Credit and Commitments to Extend Credit (Details) - Guarantee Obligations [Member]
$ in Thousands
Mar. 31, 2026
USD ($)
Contractual Obligations And Off Balance Sheet Items [Line Items]  
1 year or less $ 2,819,736
More than 1 year but less than 3 years 1,211,466
3 years or more but less than 5 years 477,422
5 years or more 1,093,396
Total 5,602,020
Standby Letters of Credit [Member]  
Contractual Obligations And Off Balance Sheet Items [Line Items]  
1 year or less 104,664
More than 1 year but less than 3 years 15,323
3 years or more but less than 5 years 1,311
5 years or more 26
Total 121,324
Unused capacity on Warehouse Purchase Program loans [Member]  
Contractual Obligations And Off Balance Sheet Items [Line Items]  
1 year or less 581,848
Total 581,848
Commitments to Extend Credit [Member]  
Contractual Obligations And Off Balance Sheet Items [Line Items]  
1 year or less 2,133,224
More than 1 year but less than 3 years 1,196,143
3 years or more but less than 5 years 476,111
5 years or more 1,093,370
Total $ 4,898,848