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v3.25.1

Loans and the Allowance for Credit Losses - Additional Information (Detail) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Financing Receivable, Recorded Investment [Line Items] |  |  |
Net deferred loan fee income (costs) | $ (12,600,000) |  | $ (11,900,000)
Un-accreted discount on purchased loans from acquisitions | 351,600,000 |  | 10,500,000
Provision for credit losses on loans and loan commitments | 68,892,000 | $ 4,021,000 |
Reserve on accrued interest related to CARES Act | 100,000 |  |
Reserve on accrued interest related to individually-evaluated loans | $ 200,000 |  |
Percentage of national unemployment projection | 4.40% |  |
Expected average percentage of national unemployment in future | 5.00% |  |
Accrued interest receivable for loans | $ 86,800,000 |  | 62,200,000
Accrued interest receivable for loans related to CARES Act | 14,100,000 |  | 13,900,000
Aggregate amount of residential real estate, home equity and consumer loans classified as substandard | 42,300,000 |  | 23,300,000
Internally assigned loan grades to residential real estate, home equity and consumer loans | 5,200,000 |  | 4,500,000
Unfunded commercial loan commitments | 39,100,000 |  | 36,100,000
Modifications loans | 49,300,000 | 26,083,000 |
TDRs defaulted | 3,516,000 |  |
Other real estate owned | 1,310,000 |  | 649,000
Net charge-offs | 2,771,000 | 5,935,000 |
Residential Real Estate [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Provision for credit losses on loans and loan commitments | 7,556,000 | 659,000 |
Modifications loans | 496,000 | 579,000 |
Other real estate owned | 700,000 |  | 0
Foreclosure proceedings in process on residential real estate loans | 16,800,000 |  | 4,000,000
Net charge-offs | 96,000 | 101,000 |
90 Days or More Past Due [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Modification to allowance due to modified loan subsequently defaulting | 0 |  |
Premier Financial Corporation [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Provision for credit losses on loans and loan commitments | 59,400,000 |  |
Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Provision for credit losses on loans and loan commitments | 20,316,000 | 5,930,000 |
Modifications loans | 5,364,000 | 41,000 |
Net charge-offs | 583,000 | $ 4,409,000 |
Commercial and Industrial [Member] | Maximum [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Annual sales of borrowers | 100,000,000 |  |
Unfunded Loan Commitment [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Modifications loans | $ 1,000,000 |  | $ 500,000

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