CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 162,386	$ 161,817
Interest-bearing deposits in other banks	9,468,189	4,233,766
Federal funds sold and securities purchased under resale agreements	30,000	30,000
Investment securities	228,784	239,871
Loans held for sale ($774.1 million at March 31, 2020 and $2,571.3 million at December 31, 2019, at fair value)	774,064	2,577,134
Loans held for investment, mortgage finance	7,588,803	8,169,849
Loans held for investment (net of unearned income)	16,857,579	16,476,413
Less: Allowance for credit losses on loans	(240,958)	(195,047)
Loans held for investment, net	24,205,424	24,451,215
Mortgage servicing rights, net	70,619	64,904
Premises and equipment, net	29,663	31,212
Accrued interest receivable and other assets	892,305	740,051
Goodwill and intangible assets, net	17,982	18,099
Total assets	35,879,416	32,548,069
Deposits:
Non-interest-bearing	9,420,303	9,438,459
Interest-bearing	17,713,960	17,040,134
Total deposits	27,134,263	26,478,593
Accrued interest payable	16,969	12,760
Other liabilities	333,759	287,157
Federal funds purchased and repurchase agreements	295,267	141,766
Other borrowings	4,900,000	2,400,000
Subordinated notes, net	282,219	282,129
Trust preferred subordinated debentures	113,406	113,406
Total liabilities	33,075,883	29,715,811
Comprehensive income:
Preferred stock, $.01 par value, $1,000 liquidation value: Authorized shares - 10,000,000; Issued shares - 6,000,000 shares issued at December 31, 2018 and 2017	150,000	150,000
Common stock, $.01 par value: Authorized shares - 100,000,000; Issued shares - 45,735,424 and 41,036,787 at December 31, 2018 and 2017, respectively	504	503
Additional paid-in capital	979,939	978,205
Retained earnings	1,668,329	1,694,608
Treasury stock (shares at cost: 417 at March 31, 2020 and December 31, 2019)	(8)	(8)
Accumulated other comprehensive income, net of taxes	4,769	8,950
Total stockholders’ equity	2,803,533	2,832,258
Total liabilities and stockholders’ equity	$ 35,879,416	$ 32,548,069