v3.26.1
Fair Value Measurements - Schedule of Additional Information about Financial Assets and Liabilities Measured at Fair Value Utilized Level 3 (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Loans Held For Sale [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Balance, beginning of period $ 31,277 $ 44,360
Originations 195,196 370,856
Sales proceeds (196,726) (393,506)
Transfers other 0 0
Total gains during the period recognized in earnings 5,477 9,567
Balance, end of period 35,224 31,277
The amount of total (Losses) gains for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at reporting date 65 48
Derivative Financial Assets Tba Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Balance, beginning of period 0 278
Originations   0
Sales proceeds   0
Transfers other   (278)
Total gains during the period recognized in earnings   0
Balance, end of period   0
The amount of total (Losses) gains for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at reporting date   0
Derivative Financial Assets Forward Sales Commitments [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Balance, beginning of period 15 0
Originations 0 0
Sales proceeds 0 0
Transfers other (15) 15
Total gains during the period recognized in earnings 0 0
Balance, end of period 0 15
The amount of total (Losses) gains for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at reporting date 0 15
Interest Rate Lock Commitments [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Balance, beginning of period 458 339
Originations 0 0
Sales proceeds 0 0
Transfers other 346 119
Total gains during the period recognized in earnings 0 0
Balance, end of period 804 458
The amount of total (Losses) gains for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at reporting date 804 458
Derivative Financial Liabilities Tba Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Balance, beginning of period 70 0
Originations 0 0
Sales proceeds 0 0
Transfers other 7 70
Total gains during the period recognized in earnings 0 0
Balance, end of period 77 70
The amount of total (Losses) gains for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at reporting date 77 70
Derivative Financial Liabilities Forward Sales Commitments [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Balance, beginning of period 0 20
Originations 0 0
Sales proceeds 0 0
Transfers other 1 (20)
Total gains during the period recognized in earnings 0 0
Balance, end of period 1 0
The amount of total (Losses) gains for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at reporting date $ 1 $ 0