Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 256.6	$ 241.5
Interest bearing deposits in banks	612.5	835.2
Federal funds sold	0.1	0.1
Total cash and cash equivalents	869.2	1,076.8
Investment securities:
Available-for-sale	3,000.3	2,960.0
Held-to-maturity, net (estimated fair values of $72.6 and $94.5 at March 31, 2020 and December 31, 2019, respectively)	70.2	92.3
Total investment securities	3,070.5	3,052.3
Loans held for investment	8,918.0	8,930.7
Mortgage loans held for sale	94.4	100.9
Total loans, net of deferred fees and costs	9,012.4	9,031.6
Less allowance for credit losses	129.1	73.0
Net loans	8,883.3	8,958.6
Goodwill	621.6	621.6
Company-owned life insurance	295.3	293.8
Premises and equipment, net of accumulated depreciation	308.5	306.0
Core deposit intangibles, net of accumulated amortization	59.2	62.1
Accrued interest receivable	46.3	46.7
Mortgage servicing rights, net of accumulated amortization and impairment reserve	27.8	30.2
Other real estate owned (“OREO”)	8.2	8.5
Other assets	221.5	187.6
Total assets	14,411.4	14,644.2
Deposits:
Non-interest bearing	3,309.3	3,426.5
Interest bearing	8,255.8	8,237.0
Total deposits	11,565.1	11,663.5
Securities sold under repurchase agreements	614.1	697.6
Accounts payable and accrued expenses	138.5	129.6
Accrued interest payable	10.3	12.1
Deferred tax liability, net	24.4	26.7
Long-term debt	13.9	13.9
Allowance for credit losses on off-balance sheet credit exposures	2.1	0.0
Subordinated debentures held by subsidiary trusts	86.9	86.9
Total liabilities	12,455.3	12,630.3
Stockholders’ equity:
Nonvoting noncumulative preferred stock without par value; authorized 100,000 shares; no shares issued and outstanding as of March 31, 2020 or December 31, 2019	0.0	0.0
Common stock	1,018.7	1,049.3
Retained earnings	897.6	953.6
Accumulated other comprehensive gain, net	39.8	11.0
Total stockholders’ equity	1,956.1	2,013.9
Total liabilities and stockholders’ equity	$ 14,411.4	$ 14,644.2