Loans and Allowance for Credit Losses - Additional Information (Detail) - USD ($)
|
3 Months Ended |
12 Months Ended |
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Non Accrual Status Of Loans After Number Of Days Past Due |
90 days
|
|
|
| Default Status Of TDRs After Number Of Days Past Due |
90 days
|
|
|
| Charge-offs |
$ 9,437,000
|
$ 8,010,000
|
$ 38,366,000
|
| Unfunded commitments related to nonperforming loans |
3,800,000
|
|
200,000
|
| Off balance sheet reserve to nonperforming loans |
0
|
|
0
|
| Total gains or losses included in earnings |
$ 0
|
0
|
|
| Forecasted Value, National Unemployment, Percent |
4.51%
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
$ 9,433,825,000
|
|
9,508,039,000
|
| Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |
8,200,000
|
3,100,000
|
|
| Post- Modification Outstanding Recorded Investment |
12,840,000
|
3,782,000
|
|
| Small Business Administration Guarantee |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
28,100,000
|
|
31,500,000
|
| Net Deferred Fees |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Unearned Deferred (Fees) Costs on Loans |
22,700,000
|
|
21,200,000
|
| Unearned Premiums and Discounts |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Unearned Deferred (Fees) Costs on Loans |
(19,100,000)
|
|
(20,200,000)
|
| Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
26,418,000
|
|
22,032,000
|
| Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
9,293,858,000
|
|
9,379,203,000
|
| Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
$ 91,164,000
|
|
91,756,000
|
| Weighted average [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Forecasted Value, National Unemployment, Percent |
5.12%
|
|
|
| Maximum [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Forecasted Value, National Unemployment, Percent |
5.37%
|
|
|
| Time and Demand Loans |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
$ 1,917,000
|
|
16,182,000
|
| Financing Receivable, before Allowance for Credit Loss |
1,196,447,000
|
|
1,226,054,000
|
| Multifamily |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
0
|
|
766,000
|
| Financing Receivable, before Allowance for Credit Loss |
606,179,000
|
|
594,790,000
|
| Nonowner Occupied Commercial Real Estate |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
2,016,000
|
|
4,770,000
|
| Financing Receivable, before Allowance for Credit Loss |
1,776,985,000
|
|
1,834,016,000
|
| Commercial, financial, agricultural and other [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
4,014,000
|
4,019,000
|
|
| Financing Receivable, before Allowance for Credit Loss |
2,061,894,000
|
|
2,044,989,000
|
| Commercial, financial, agricultural and other [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
8,550,000
|
|
5,127,000
|
| Commercial, financial, agricultural and other [Member] | Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,997,254,000
|
|
1,992,432,000
|
| Commercial, financial, agricultural and other [Member] | Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
45,160,000
|
|
46,618,000
|
| Commercial, financial, agricultural and other [Member] | Time and Demand Loans |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
1,917,000
|
2,976,000
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,196,447,000
|
|
1,226,054,000
|
| Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
5,762,000
|
|
2,666,000
|
| Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,138,449,000
|
|
1,177,868,000
|
| Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
43,190,000
|
|
45,288,000
|
| Commercial Real Estate [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
2,308,000
|
1,464,000
|
|
| Financing Receivable, before Allowance for Credit Loss |
3,148,767,000
|
|
3,182,109,000
|
| Post- Modification Outstanding Recorded Investment |
12,840,000
|
3,201,000
|
|
| Commercial Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
3,589,000
|
|
1,975,000
|
| Commercial Real Estate [Member] | Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
3,110,466,000
|
|
3,139,452,000
|
| Commercial Real Estate [Member] | Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
32,764,000
|
|
30,612,000
|
| Commercial Real Estate [Member] | Multifamily |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
0
|
0
|
|
| Financing Receivable, before Allowance for Credit Loss |
606,179,000
|
|
594,790,000
|
| Commercial Real Estate [Member] | Multifamily | Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
0
|
|
417,000
|
| Commercial Real Estate [Member] | Multifamily | Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
594,470,000
|
|
594,363,000
|
| Commercial Real Estate [Member] | Multifamily | Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
11,709,000
|
|
10,000
|
| Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
2,016,000
|
874,000
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,776,985,000
|
|
1,834,016,000
|
| Post- Modification Outstanding Recorded Investment |
12,840,000
|
3,201,000
|
|
| Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate | Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
2,535,000
|
|
534,000
|
| Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate | Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,763,714,000
|
|
1,809,256,000
|
| Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate | Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
9,288,000
|
|
14,156,000
|
| Loans to individuals [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Charge-offs |
2,644,000
|
2,419,000
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,435,326,000
|
|
1,457,870,000
|
| Loans to individuals [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
4,285,000
|
|
6,733,000
|
| Loans to individuals [Member] | Financial Asset, Not Past Due |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
1,429,288,000
|
|
1,449,390,000
|
| Loans to individuals [Member] | Non Accrual Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Financing Receivable, before Allowance for Credit Loss |
$ 9,000
|
|
32,000
|
| Loans to individuals [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Non Accrual Status Of Loans After Number Of Days Past Due |
150 days
|
|
|
| Nonaccrual Commercial Loans [Member] |
|
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
|
|
|
| Loans Held for sale, Amount |
$ 1,100,000
|
|
$ 0
|
| Loans and Leases Receivable, Gain (Loss) on Sales, Net |
$ 0
|
$ 0
|
|