Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 291.2	$ 241.5
Interest bearing deposits in banks	1,133.7	835.2
Federal funds sold	0.1	0.1
Total cash and cash equivalents	1,425.0	1,076.8
Investment securities:
Available-for-sale	3,317.6	2,960.0
Held-to-maturity, net (estimated fair values of $71.1 and $94.5 at June 30, 2020 and December 31, 2019, respectively)	67.9	92.3
Total investment securities	3,385.5	3,052.3
Mortgage loans held for sale, at fair value	169.9	100.9
Loans held for investment, net of deferred fees and costs	10,032.5	8,930.7
Allowance for credit losses	146.1	73.0
Net loans held for investment	9,886.4	8,857.7
Goodwill	621.6	621.6
Company-owned life insurance	293.1	293.8
Premises and equipment, net of accumulated depreciation	309.5	306.0
Core deposit intangibles, net of accumulated amortization	56.5	62.1
Accrued interest receivable	56.5	46.7
Mortgage servicing rights, net of accumulated amortization and impairment reserve	24.6	30.2
Other real estate owned (“OREO”)	6.5	8.5
Other assets	236.3	187.6
Total assets	16,471.4	14,644.2
Deposits:
Non-interest bearing	4,426.6	3,426.5
Interest bearing	8,913.8	8,237.0
Total deposits	13,340.4	11,663.5
Securities sold under repurchase agreements	756.1	697.6
Accounts payable and accrued expenses	133.5	129.6
Accrued interest payable	8.8	12.1
Deferred tax liability, net	32.2	26.7
Long-term debt	112.3	13.9
Allowance for credit losses on off-balance sheet credit exposures	2.3	0.0
Subordinated debentures held by subsidiary trusts	86.9	86.9
Total liabilities	14,472.5	12,630.3
Stockholders’ equity:
Nonvoting noncumulative preferred stock without par value; authorized 100,000 shares; no shares issued and outstanding as of June 30, 2020 or December 31, 2019	0.0	0.0
Common stock	1,021.2	1,049.3
Retained earnings	912.5	953.6
Accumulated other comprehensive gain, net	65.2	11.0
Total stockholders’ equity	1,998.9	2,013.9
Total liabilities and stockholders’ equity	$ 16,471.4	$ 14,644.2