Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 144,244	$ 148,896
Interest-bearing deposits in banks	2,147,266	1,459,723
Federal funds and other short-term investments	27,000	0
Cash and cash equivalents	2,318,510	1,608,619
Debt securities available-for-sale	4,496,824	3,224,721
Debt securities held-to-maturity (fair value $1,148,804 and $437,193, respectively)	1,156,098	420,361
Loans held for sale at fair value	44,109	105,433
Loans and leases held for investment	11,760,346	11,370,815
Less allowance for credit losses - loans and leases	(102,532)	(137,010)
Loans and leases, net	11,657,814	11,233,805
Premises and equipment, net	245,296	218,489
Bank owned life insurance	217,713	201,969
Accrued interest receivable	42,999	47,672
Net deferred tax asset	41,322	38,411
Derivative financial instruments	42,480	86,666
Goodwill and other intangible assets, net	472,407	381,823
Other assets	211,199	226,405
Total assets	20,946,771	17,794,374
Deposits:
Noninterest-bearing demand	6,956,981	5,390,291
Interest-bearing deposits	11,284,198	9,842,067
Total deposits	18,241,179	15,232,358
Long-term debt	247,360	326,956
Derivative financial instruments	25,145	29,003
Accrued expenses and other liabilities	210,842	198,527
Total liabilities	18,724,526	15,786,844
Commitments and contingencies
Shareholders' equity:
Preferred stock, $1 par value: 10,000,000 shares authorized; Series I, $25,000 per share liquidation preference; 4,000 shares issued and outstanding	96,422	96,422
Common stock, $1 par value; 200,000,000 and 150,000,000 shares authorized, respectively; 89,349,826 and 86,675,279 shares issued and outstanding, respectively	89,350	86,675
Common stock issuable; 595,705 and 600,834 shares, respectively	11,288	10,855
Capital surplus	1,721,007	1,638,999
Retained earnings	330,654	136,869
Accumulated other comprehensive (loss) income	(26,476)	37,710
Total shareholders’ equity	2,222,245	2,007,530
Total liabilities and shareholders’ equity	$ 20,946,771	$ 17,794,374