CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 185,242	$ 161,817
Interest-bearing deposits in other banks	10,461,544	4,233,766
Federal funds sold and securities purchased under resale agreements	0	30,000
Investment securities	1,367,313	239,871
Loans held for sale ($639.0 million at September 30, 2020 and $2,571.3 million at December 31, 2019, at fair value)	648,009	2,577,134
Loans held for investment, mortgage finance	9,378,104	8,169,849
Loans held for investment (net of unearned income)	15,789,958	16,476,413
Less: Allowance for credit losses on loans	(290,165)	(195,047)
Loans held for investment, net	24,877,897	24,451,215
Mortgage servicing rights, net	95,323	64,904
Premises and equipment, net	26,653	31,212
Accrued interest receivable and other assets	753,123	740,051
Goodwill and intangible assets, net	17,768	18,099
Total assets	38,432,872	32,548,069
Deposits:
Non-interest-bearing	12,339,212	9,438,459
Interest-bearing	19,620,275	17,040,134
Total deposits	31,959,487	26,478,593
Accrued interest payable	14,674	12,760
Other liabilities	354,318	318,094
Federal funds purchased and repurchase agreements	208,183	141,766
Other borrowings	2,700,000	2,400,000
Subordinated notes, net	282,400	282,129
Trust preferred subordinated debentures	113,406	113,406
Total liabilities	35,632,468	29,746,748
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	987,754	978,205
Retained earnings	1,655,317	1,663,671
Treasury stock (shares at cost: 417 at September 30, 2020 and December 31, 2019)	(8)	(8)
Accumulated other comprehensive income, net of taxes	6,837	8,950
Total stockholders’ equity	2,800,404	2,801,321
Total liabilities and stockholders’ equity	$ 38,432,872	$ 32,548,069