Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Assets
Cash and due from banks	$ 390.2	$ 378.2
Interest-bearing deposits in banks	568.2	199.7
Federal funds sold	0.1	0.1
Total cash and cash equivalents	958.5	578.0
Investment securities:
Available-for-sale, at fair value	5,603.1	5,841.5
Held-to-maturity (estimated fair values of $2,440.4 at June 30, 2024 and $2,874.0 at December 31, 2023)	2,798.5	3,207.9
Total investment securities	8,401.6	9,049.4
Federal Home Loan Bank Stock and Federal Reserve Bank Stock	182.3	223.2
Loans held for sale ($3.1 and $0.5 of which is recorded at fair value at June 30, 2024 December 31, 2023)	22.3	47.4
Loans held for investment, net of deferred fees and costs	18,235.0	18,279.6
Allowance for credit losses	(232.8)	(227.7)
Net loans held for investment	18,002.2	18,051.9
Goodwill	1,100.9	1,100.9
Bank Owned Life Insurance	507.6	502.4
Premises and equipment, net of accumulated depreciation	436.5	444.3
Other intangibles, net of accumulated amortization	74.0	81.4
Accrued interest receivable	126.4	129.1
Mortgage servicing rights, net of accumulated amortization	27.0	28.3
Real Estate Acquired Through Foreclosure	6.7	16.5
Deferred tax assets	154.5	150.0
Other assets	289.0	268.4
Total assets	30,289.5	30,671.2
Deposits:
Non-interest bearing	6,174.0	6,029.6
Interest bearing	16,696.7	17,293.5
Total deposits	22,870.7	23,323.1
Securities sold under repurchase agreements	741.8	782.7
Accounts payable and accrued expenses	398.3	380.4
Accrued interest payable	71.1	52.2
Long-term debt	383.4	120.8
Other Short-term Borrowings	2,430.0	2,603.0
Allowance for credit losses on off-balance sheet credit exposures	5.8	18.4
Subordinated debentures held by subsidiary trusts	163.1	163.1
Total liabilities	27,064.2	27,443.7
Stockholders’ equity:
Preferred stock, no par value; 100,000 shares authorized; none issued and outstanding	0.0	0.0
Common stock and additional paid-in-capital, $0.00001 par value; 150,000,000 shares authorized; 104,560,618 and 103,941,626 shares were issued and outstanding at June 30, 2024 and December 31, 2023	2,453.9	2,448.9
Retained earnings	1,156.9	1,135.1
Accumulated other comprehensive loss, net	(385.5)	(356.5)
Total stockholders’ equity	3,225.3	3,227.5
Total liabilities and stockholders’ equity	$ 30,289.5	$ 30,671.2
Common Stock, Shares Authorized	150,000,000