XML 115 R100.htm IDEA: XBRL DOCUMENT v3.25.2
Fair Value Measurements - Schedule of Estimated Fair Values and Related Carrying Amounts of Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Held-to-maturity securities, net $ 2,891,974 $ 2,949,951
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 644,462 687,377
Interest bearing balances due from banks - time 100 100
Held-to-maturity securities, net 3,591,531 3,636,636
Interest receivable 120,443 123,243
Federal funds purchased and securities sold under agreements to repurchase 31,306 37,109
Other borrowings 634,349 745,372
Subordinated notes and debentures 366,369 366,293
Interest payable 53,212 67,111
Carrying Amount | Noninterest bearing transaction accounts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 4,468,237 4,460,517
Carrying Amount | Interest bearing transaction accounts and savings deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 11,176,791 10,982,022
Carrying Amount | Time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 6,179,962 6,443,211
Carrying Amount | Legacy Loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net 16,857,559 16,770,918
Fair Value Measurements    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 644,462 687,377
Interest bearing balances due from banks - time 100 100
Held-to-maturity securities, net 2,891,974 2,949,951
Interest receivable 120,443 123,243
Federal funds purchased and securities sold under agreements to repurchase 31,306 37,109
Other borrowings 633,418 743,940
Subordinated notes and debentures 364,323 361,332
Interest payable 53,212 67,111
Fair Value Measurements | Noninterest bearing transaction accounts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 4,468,237 4,460,517
Fair Value Measurements | Interest bearing transaction accounts and savings deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 11,176,791 10,982,022
Fair Value Measurements | Time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 6,164,076 6,429,309
Fair Value Measurements | Legacy Loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net 16,401,301 16,153,128
Fair Value Measurements | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 644,462 687,377
Interest bearing balances due from banks - time 0 0
Held-to-maturity securities, net 0 0
Interest receivable 0 0
Federal funds purchased and securities sold under agreements to repurchase 0 0
Other borrowings 0 0
Subordinated notes and debentures 0 0
Interest payable 0 0
Fair Value Measurements | Level 1 | Noninterest bearing transaction accounts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 0 0
Fair Value Measurements | Level 1 | Interest bearing transaction accounts and savings deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 0 0
Fair Value Measurements | Level 1 | Time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 0 0
Fair Value Measurements | Level 1 | Legacy Loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net 0 0
Fair Value Measurements | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 0 0
Interest bearing balances due from banks - time 100 100
Held-to-maturity securities, net 2,891,974 2,949,951
Interest receivable 120,443 123,243
Federal funds purchased and securities sold under agreements to repurchase 31,306 37,109
Other borrowings 633,418 743,940
Subordinated notes and debentures 364,323 361,332
Interest payable 53,212 67,111
Fair Value Measurements | Level 2 | Noninterest bearing transaction accounts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 4,468,237 4,460,517
Fair Value Measurements | Level 2 | Interest bearing transaction accounts and savings deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 11,176,791 10,982,022
Fair Value Measurements | Level 2 | Time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 0 0
Fair Value Measurements | Level 2 | Legacy Loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net 0 0
Fair Value Measurements | Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 0 0
Interest bearing balances due from banks - time 0 0
Held-to-maturity securities, net 0 0
Interest receivable 0 0
Federal funds purchased and securities sold under agreements to repurchase 0 0
Other borrowings 0 0
Subordinated notes and debentures 0 0
Interest payable 0 0
Fair Value Measurements | Level 3 | Noninterest bearing transaction accounts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 0 0
Fair Value Measurements | Level 3 | Interest bearing transaction accounts and savings deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 0 0
Fair Value Measurements | Level 3 | Time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Deposits 6,164,076 6,429,309
Fair Value Measurements | Level 3 | Legacy Loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Loans, net $ 16,401,301 $ 16,153,128