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Consolidated Statements of Cash Flows - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net income | $ 58.4 | $ 56.3
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |
Provision for credit losses | 5.3 | 15.2
Gain (Loss) on Disposition of Property Plant Equipment | 0.2 | 0.1
Depreciation, Depletion and Amortization | 15.9 | 13.7
Accretion (Amortization) of Discounts and Premiums, Investments | 0.2 | (0.6)
Debt and Equity Securities, Gain (Loss) | 0.0 | 23.4
Gain (Loss) on Sale of Loans and Leases | (0.4) | (0.8)
Impairment of Real Estate and Other Assets Pending Disposal | 2.1 | 0.1
Deferred Income Tax Expense (Benefit) | 0.0 | 11.3
Life Insurance, Corporate or Bank Owned, Change in Value | (3.7) | (3.4)
Share-Based Payment Arrangement, Noncash Expense | 2.9 | 2.3
Payments for Origination of Mortgage Loans Held-for-sale | (69.9) | (80.4)
Proceeds from Sale of Mortgage Loans Held-for-sale | 67.6 | 79.6
Increase (Decrease) in Operating Capital [Abstract] |  |
Increase (Decrease) in Accrued Interest Receivable, Net | 3.6 | 4.6
Increase (Decrease) in Other Operating Assets | 9.8 | 7.7
Increase (Decrease) in Interest Payable, Net | 1.4 | 11.6
Increase (Decrease) in Accounts Payable and Accrued Liabilities | (5.7) | (83.0)
Net Cash Provided by (Used in) Operating Activities, Total | 87.6 | 57.7
Payments to Acquire Investments [Abstract] |  |
Payments to Acquire Debt Securities, Available-for-Sale | (77.2) | 0.0
Proceeds from Sale, Maturity and Collection of Investments [Abstract] |  |
Proceeds from Sale and Maturity of Held-to-Maturity Securities | 356.6 | 54.9
Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale | 117.4 | 987.3
Purchases of Federal Home Loan Bank and Federal Reserve Bank stock | 40.5 | 73.5
Proceeds from Federal Home Loan Bank and Federal Reserve Bank stock | 85.3 | 57.5
Proceeds from Life Insurance Policy | 1.4 | 1.9
Payments for (Proceeds from) Other Loans and Leases | 92.9 | (152.8)
Payments For (Proceeds From) Recoveries of Loans Previously Charged off | 2.6 | 0.0
Proceeds from Sale of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans | 0.2 | 0.0
Payments for (Proceeds from) Productive Assets | (6.8) | (7.0)
Net Cash Provided by (Used in) Investing Activities, Total | 531.9 | 868.3
Net Cash Provided by (Used in) Financing Activities [Abstract] |  |
Increase (Decrease) in Deposits | (513.1) | (966.6)
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase | 11.5 | (82.1)
Proceeds from (Repayments of) Other Debt | (261.0) | 383.0
Proceeds from Issuance of Unsecured Debt | 250.0 | 0.0
Payments for Repurchase of Common Stock | (1.1) | (1.8)
Payments of Ordinary Dividends, Common Stock | (48.8) | (48.3)
Net Cash Provided by (Used in) Financing Activities, Total | (562.5) | (715.8)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total | 57.0 | 210.2
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Beginning Balance | 578.0 | 870.5
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance | 635.0 | 1,080.7
Supplemental Cash Flow Information [Abstract] |  |
Interest Paid, Excluding Capitalized Interest, Operating Activities | 123.2 | 65.4
Supplemental Cash Flow Elements [Abstract] |  |
Capitalization Of Internally Originated Mortgage Servicing Rights, Noncash Supplemental Disclosures | 0.1 | 0.0
Finance Lease, Right-of-Use Asset, Amortization | 0.2 | 0.6
Net change in unamortized losses on available-for-sale investment securities transferred into held-to-maturity | 0.0 | 23.0
Transfer of loans to held-for-sale | 0.0 | 3.1
Real Estate Owned, Transfer to Real Estate Owned | 0.1 | 0.8
Gains (Losses) on Sales of Other Real Estate | $ (0.1) | $ 0.0

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-8 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-24 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-4 + Details
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