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Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Analysis of Payment Status of Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 8,225,650 | $ 8,094,676
Nonaccrual loans | 34,625 | 31,779
Allowance for credit loss, fee, and loan in process | 8,224,810 | 8,093,488
Unamortized net deferred loan costs/(fees) | 840 | 1,188
Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 8,166,011 | 8,023,752
Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 18,473 | 28,601
Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,701 | 9,356
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 10,594 | 9,804
Allowance for credit loss, fee, and loan in process | 911,227 | 919,690
Commercial and industrial | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 899,125 | 906,903
Commercial and industrial | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,220 | 2,442
Commercial and industrial | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 288 | 541
Commercial and industrial | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 911,227 | 919,690
Real estate, commercial | Construction, development & other land loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 151 | 90
Allowance for credit loss, fee, and loan in process | 633,529 | 647,167
Real estate, commercial | Construction, development & other land loans | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 632,474 | 647,077
Real estate, commercial | Construction, development & other land loans | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 904 | 0
Real estate, commercial | Construction, development & other land loans | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Real estate, commercial | Construction, development & other land loans | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 633,529 | 647,167
Real estate, commercial | Commercial real estate - owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 9,992 | 9,367
Allowance for credit loss, fee, and loan in process | 1,254,596 | 1,248,812
Real estate, commercial | Commercial real estate - owner occupied | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,240,800 | 1,236,396
Real estate, commercial | Commercial real estate - owner occupied | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,804 | 2,073
Real estate, commercial | Commercial real estate - owner occupied | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 976
Real estate, commercial | Commercial real estate - owner occupied | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 1,254,596 | 1,248,812
Real estate, commercial | Commercial real estate - non owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 4,925 | 887
Allowance for credit loss, fee, and loan in process | 2,758,629 | 2,625,554
Real estate, commercial | Commercial real estate - non owner occupied | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,749,190 | 2,614,843
Real estate, commercial | Commercial real estate - non owner occupied | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,496 | 9,678
Real estate, commercial | Commercial real estate - non owner occupied | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 18 | 146
Real estate, commercial | Commercial real estate - non owner occupied | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 2,758,629 | 2,625,554
Real estate, commercial | Multi-family real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 0 | 0
Allowance for credit loss, fee, and loan in process | 509,419 | 506,407
Real estate, commercial | Multi-family real estate | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 509,419 | 506,407
Real estate, commercial | Multi-family real estate | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Real estate, commercial | Multi-family real estate | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Real estate, commercial | Multi-family real estate | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 509,419 | 506,407
Real estate, mortgage | Residential 1-4 family real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 6,678 | 9,487
Allowance for credit loss, fee, and loan in process | 1,731,397 | 1,729,322
Real estate, mortgage | Residential 1-4 family real estate | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,712,490 | 1,699,800
Real estate, mortgage | Residential 1-4 family real estate | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,237 | 12,973
Real estate, mortgage | Residential 1-4 family real estate | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,992 | 7,062
Real estate, mortgage | Residential 1-4 family real estate | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 1,731,397 | 1,729,322
Real estate, mortgage | Home equity loans/lines of credit |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 1,971 | 1,795
Allowance for credit loss, fee, and loan in process | 355,876 | 345,883
Real estate, mortgage | Home equity loans/lines of credit | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 353,058 | 342,551
Real estate, mortgage | Home equity loans/lines of credit | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 588 | 1,118
Real estate, mortgage | Home equity loans/lines of credit | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 259 | 419
Real estate, mortgage | Home equity loans/lines of credit | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | 355,876 | 345,883
Consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 314 | 349
Allowance for credit loss, fee, and loan in process | 70,137 | 70,653
Consumer loans | Accruing Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 69,455 | 69,775
Consumer loans | Accruing 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 224 | 317
Consumer loans | Accruing 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 144 | 212
Consumer loans | Loans, Excluding Purchased Credit Impaired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Allowance for credit loss, fee, and loan in process | $ 70,137 | $ 70,653

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