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v3.25.1

Other Comprehensive Income/Loss - Schedule of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Investment securities available-for sale: |  |  |  |
Change in net unrealized gain during period, pre-tax | $ 70.7 | $ (26.4) |  |
Change in net unrealized gain during period, tax expense (benefit) | (17.7) | 6.6 |  |
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax | 53.0 | (19.8) |  |
OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), after Tax | 0.0 | (0.2) |  |
Unrealized loss on derivatives, tax expense (benefit) | (0.3) | (0.9) |  |
Unrealized loss on derivatives, net of tax | 0.7 | (13.0) |  |
Other comprehensive income (loss), before tax | 72.7 | (40.5) |  |
Other Comprehensive Income (Loss), tax expense (benefit) | (18.3) | 10.1 |  |
Other Comprehensive Income (Loss), Net of Tax | 54.4 | (30.4) |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax | 1.0 | (17.4) |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | 1.0 | 3.5 |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax | 0.7 | 2.6 |  |
Total stockholders’ equity | 3,361.3 | 3,209.7 | $ 3,304.0 | $ 3,227.5
OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), before Tax | 0.0 | (0.2) |  |
Amortization of unrealized gains on available-for-sale securities transferred into held-to-maturity, tax expense (benefit) | 0.0 | 0.0 |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax | $ (0.3) | $ 4.4 |  |

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