Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Loss Contingencies [Line Items] | ||||
| Conditional commitments | $ 53.3 | $ 49.6 | $ 35.1 | $ 39.5 |
| Other conditional commitments | $ 61.0 | $ 21.0 | ||
| Percentage of CRE loans occupied by owners | 14.00% | |||
| Commercial and industrial | Loans Receivable | Credit Concentration Risk | ||||
| Loss Contingencies [Line Items] | ||||
| Percent of commercial real estate related loans | 48.00% | 48.00% | ||
| Commercial Real Estate Portfolio Segment | Loans Receivable | Credit Concentration Risk | ||||
| Loss Contingencies [Line Items] | ||||
| Percent of commercial real estate related loans | 27.00% | 27.00% | ||
| Unfunded Loan Commitment | ||||
| Loss Contingencies [Line Items] | ||||
| Conditional commitments | $ 53.3 | $ 49.6 |
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage of commercial real estate Loans occupied by owners. No definition available.
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