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Consolidated Statements of Cash Flows - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |  |
Net income | $ 257.5 | $ 202.2 | $ 192.1
Adjustments to reconcile net income from operations to net cash provided by operating activities: |  |  |
Provision for (reversal of) credit losses | 32.2 | 82.7 | (14.6)
Net (gain) loss on disposal of premises and equipment | 0.7 | (2.0) | (1.8)
Depreciation and amortization | 53.8 | 55.5 | 44.4
Net premium amortization on investment securities | 2.4 | 17.0 | 38.8
Net loss (gain) on investment securities transactions | 23.5 | 24.4 | (1.1)
Realized and unrealized net gains on mortgage banking activities | (2.8) | (9.4) | (26.2)
Net gain on sale of OREO | (0.1) | (0.7) | (0.3)
Write-downs of OREO and other assets pending disposal | 1.1 | 2.8 | 0.0
Gain (Loss) on Extinguishment of Debt | 0.0 | (1.4) | 0.0
Mortgage servicing rights impairment (recovery) | 0.0 | (3.4) | (6.9)
Deferred taxes | 20.4 | (4.7) | 5.0
Net increase in cash surrender value of company-owned life insurance | (9.7) | (11.1) | (6.1)
Stock compensation expense | 4.7 | 9.6 | 8.9
Originations of mortgage loans held for sale | (351.5) | (429.5) | (817.4)
Proceeds from sales of mortgage loans held for sale | 359.5 | 461.6 | 883.9
Changes in operating assets and liabilities: |  |  |
(Increase) decrease in interest receivable | (10.8) | (37.8) | 3.7
Decrease (increase) in other assets | 80.5 | (12.9) | (16.4)
Increase (decrease) in accrued interest payable | 37.7 | 8.4 | (2.0)
(Decrease) increase in accounts payable and accrued expenses | (71.1) | 183.1 | (1.7)
Net cash provided by operating activities | 428.0 | 534.4 | 282.3
Purchases of investment securities: |  |  |
Held-to-maturity | (0.5) | (858.5) | (1,238.0)
Available-for-sale | (134.2) | (3,309.4) | (2,717.8)
Proceeds from maturities, pay-downs, calls and sales of investment securities: |  |  |
Held-to-maturity | 227.3 | 370.5 | 257.6
Available-for-sale | 1,390.7 | 1,926.5 | 1,118.0
Purchases of Federal Home Loan Bank and Federal Reserve Bank Stock | (290.8) | (241.4) | 0.0
Proceeds from Federal Home Loan Bank and Federal Reserve Bank Stock | 266.2 | 112.2 | 0.0
Proceeds from bank-owned life insurance settlements | 5.2 | 1.3 | 1.0
Extensions of credit to clients, net of repayments | (185.8) | (951.4) | 467.8
Proceeds from sales of OREO | 3.5 | 3.4 | 1.7
Proceeds from the sale of Health Savings Accounts | 0.0 | 1.4 | 0.0
Acquisition of bank and bank holding company, net of cash and cash equivalents received | 0.0 | 2,006.9 | 0.0
Capital expenditures, net of sales | (28.2) | (10.5) | (10.3)
Net cash provided by (used in) investing activities | 1,253.4 | (949.0) | (2,120.0)
Cash flows from financing activities: |  |  |
Net (decrease) increase in deposits | (1,750.5) | (2,884.0) | 2,052.6
Net (decrease) increase in securities sold under repurchase agreements | (270.2) | 28.9 | (40.3)
Proceeds from (Repayments of) Other Debt | 276.0 | 2,327.0 | 0.0
Repayments of Other Long-term Debt | 0.1 | 164.1 | 0.0
Advances on long-term debt | 0.0 | 14.3 | 0.0
Payments of Stock Issuance Costs | 0.0 | (0.8) | 0.0
Proceeds from issuance of common stock | 0.0 | 0.1 | 0.4
Purchase and retirement of common stock | (34.0) | (199.0) | (5.4)
Dividends paid to common stockholders | (195.1) | (182.1) | (101.6)
Net cash used in financing activities | (1,973.9) | (1,059.7) | 1,905.7
Net (decrease) increase in cash and cash equivalents | (292.5) | (1,474.3) | 68.0
Cash and cash equivalents at beginning of period | 870.5 | 2,344.8 | 2,276.8
Cash and cash equivalents at end of period | 578.0 | 870.5 | 2,344.8
Supplemental disclosures of cash flow information: |  |  |
Cash paid during the period for income taxes | (51.2) | (57.8) | (56.8)
Cash paid during the period for interest expense | 363.6 | 32.0 | 19.3
Supplemental disclosures of noncash investing and financing activities: |  |  |
Transfer of held-to-maturity to available-for-sale securities | 23.0 | 10.9 | 0.0
Non-cash transfer of securities from available-for-sale to held-to-maturity | 0.0 | 463.6 | 672.2
Transfer of Loans Held-for-sale to Portfolio Loans | 29.6 | 19.8 | 0.0
Amortization of unrealized gains and losses on transfers of securities | 30.4 | 12.4 | 0.0
Right-of-use assets obtained in exchange for operating lease liabilities | 6.4 | 22.9 | 5.9
Transfer of loans to other real estate owned | 8.3 | 0.4 | 0.9
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable | 0.0 | 1,723.3 | 0.0
Capitalization of internally originated mortgage servicing rights | 1.1 | 2.5 | 3.7
Supplemental schedule of noncash investing activities from acquisitions: |  |  |
Investment securities | 0.0 | 2,699.0 | 0.0
Loans held for sale | 0.0 | 217.0 | 0.0
Loans held for investment, net | 0.0 | 7,645.5 | 0.0
Premises and equipment | 0.0 | 144.7 | 0.0
Goodwill | 0.0 | 479.3 | 0.0
Other intangibles | 0.0 | 72.9 | 0.0
Mortgage servicing rights | 0.0 | 1.3 | 0.0
Company-owned life insurance | 0.0 | 186.6 | 0.0
Deferred tax assets | 0.0 | 60.2 | 0.0
Other real estate owned | 0.0 | 15.8 | 0.0
Other assets | 0.0 | 200.8 | 0.0
Total noncash assets acquired | 0.0 | 11,824.2 | 0.0
Deposits | 0.0 | 11,688.0 | 0.0
Securities sold under repurchase agreements | 0.0 | 74.0 | 0.0
Accounts payable and accrued expenses | 0.0 | 110.4 | 0.0
Long-term debt | 0.0 | 159.3 | 0.0
Subordinated debentures held by subsidiary trusts | 0.0 | 76.1 | 0.0
Total liabilities assumed | 0.0 | (12,107.8) | 0.0
Securities Purchased under Agreements to Resell, Increase | $ 0.0 | 101.1 | 0.0
Finite-Lived Intangible Assets, Gross |  | $ 177.5 | $ 106.0

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- Definition Amount of assets, classified as other, acquired in a noncash or part noncash acquisition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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- Definition The amount of payables that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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- Definition The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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- Definition The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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- Definition The amount of cash paid for the origination of mortgages that are held for sale. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-21 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-25 + Details
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- Definition The net cash outflow or inflow for other changes, net, in the loan and lease balances held for investment purposes that are not separately disclosed. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both. + References No definition available. + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-11 + Details
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- Definition Amount of cash outflow through purchase of long-term held-to-maturity securities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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- Definition The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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- Definition Amount of cash inflow for proceeds from settlement of corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 21C -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-21C + Details
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- Definition The cash flow from investments sold under the agreement to repurchase such investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-9 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-8 + Details
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- Definition Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-21 + Details
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- Definition The cash inflow from proceeds From Sales of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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