Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 122,048	$ 125,844
Interest-bearing deposits in banks	923,591	389,362
Cash and cash equivalents	1,045,639	515,206
Debt securities available-for-sale	2,690,448	2,274,581
Debt securities held-to-maturity (fair value $413,820 and $287,904, respectively)	398,373	283,533
Loans held for sale at fair value	128,587	58,484
Loans and leases held for investment	11,798,910	8,812,553
Less allowance for credit losses - loans and leases	(134,256)	(62,089)
Loans and leases, net	11,664,654	8,750,464
Premises and equipment, net	211,885	215,976
Bank owned life insurance	201,515	202,664
Accrued interest receivable	48,091	32,660
Net deferred tax asset	39,818	34,059
Derivative financial instruments	103,388	35,007
Goodwill and other intangible assets, net	384,074	342,247
Other assets	236,405	171,135
Total assets	17,152,877	12,916,016
Deposits:
Noninterest-bearing demand	5,227,170	3,477,979
Interest-bearing deposits	9,376,206	7,419,265
Total deposits	14,603,376	10,897,244
Long-term debt	326,703	212,664
Derivative financial instruments	33,519	15,516
Accrued expenses and other liabilities	222,024	154,900
Total liabilities	15,185,622	11,280,324
Shareholders' equity:
Preferred stock, $1 par value: 10,000,000 shares authorized; Series I, $25,000 per share liquidation preference; 4,000 and no shares issued and outstanding, respectively	96,422	0
Common stock, $1 par value: 150,000,000 shares authorized; 86,611,114 and 79,013,729 shares issued and outstanding, respectively	86,611	79,014
Common stock issuable: 590,521 and 664,640 shares, respectively	10,632	11,491
Capital surplus	1,637,467	1,496,641
Retained earnings	94,938	40,152
Accumulated other comprehensive income	41,185	8,394
Total shareholders' equity	1,967,255	1,635,692
Total liabilities and shareholders' equity	$ 17,152,877	$ 12,916,016