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v3.25.1

Acquisition and Divestiture Activity - Pending Acquisition (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Nov. 25, 2024 USD ($) $ / shares shares | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
Business Acquisition [Line Items] |  |  |
Assets |  | $ 53,877,944 | $ 53,552,272
Total loans, net of unearned income |  | 36,413,944 | 36,285,887
Deposits |  | 41,034,572 | 40,823,560
Bremer |  |  |
Business Acquisition [Line Items] |  |  |
Cash per share above exchange (in dollars per share) | $ / shares | $ 26.22 |  |
Shares exchange ratio | 4.182 |  |
Value of issuance common stock shares | $ 1,400,000 |  |
Price per share (in dollars per share) | $ / shares | $ 116.76 |  |
Transaction costs |  | $ 700 |
Bremer | Citibank, N.A |  |  |
Business Acquisition [Line Items] |  |  |
Forward contract indexed to issuer's equity (in shares) | shares | 19,047,619 |  |
Forward contract indexed to equity, settlement, cash | $ 400,000 |  |
Bremer | Citigroup Global Markets Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Period for additional purchases | 30 days |  |
Additional number of shares to purchase (in shares) | shares | 2,857,143 |  |
Additional number of shares (in shares) | shares | 2,857,143 |  |
Bremer |  |  |
Business Acquisition [Line Items] |  |  |
Assets |  |  | 16,500,000
Total loans, net of unearned income |  |  | 11,800,000
Deposits |  |  | $ 13,200,000

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