CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
INTEREST INCOME
Loans	$ 155,225	$ 163,499	$ 113,265
Investment securities and other interest-earning assets	17,769	17,325	10,524
Total interest income	172,994	180,824	123,789
INTEREST EXPENSE
Deposits	4,426	5,685	10,487
FHLB advances and other borrowings	65	121	1,081
Subordinated debentures	6,851	6,820	3,046
Total interest expense	11,342	12,626	14,614
Net interest income before provision for credit losses	161,652	168,198	109,175
Provision for credit losses	1,974	1,517	25,454
Net interest income after provision for credit losses	159,678	166,681	83,721
NONINTEREST INCOME
Loan servicing income	458	633	480
Earnings on bank-owned life insurance	2,233	2,240	1,336
Net gain from sales of loans	361	328	771
Net gain from sales of investment securities	4,046	5,002	7,760
Other income	4,602	3,197	1,754
Total noninterest income	23,740	23,194	14,475
NONINTEREST EXPENSE
Compensation and benefits	52,548	52,044	34,376
Premises and occupancy	11,980	13,268	8,168
Data processing	5,828	5,990	3,253
Other real estate owned operations, net	0	(5)	14
FDIC insurance premiums	1,181	1,213	367
Legal and professional services	3,935	4,305	3,126
Marketing expense	1,598	1,442	1,412
Office expense	1,829	2,191	1,103
Loan expense	1,115	1,084	822
Deposit expense	3,859	5,026	4,988
Merger-related expense	5	5,071	1,724
Amortization of intangible assets	4,143	4,505	3,965
Other expense	4,468	3,805	3,313
Total noninterest expense	92,489	99,939	66,631
Net income before income taxes	90,929	89,936	31,565
Income tax expense	22,261	22,800	5,825
Net income	$ 68,668	$ 67,136	$ 25,740
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.73	$ 0.71	$ 0.43
Diluted (in dollars per share)	$ 0.72	$ 0.71	$ 0.43
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	93,529,147	93,568,994	59,007,191
Diluted (in shares)	94,093,644	93,969,188	59,189,717
Service charges on deposit accounts
NONINTEREST INCOME
Noninterest income	$ 2,032	$ 2,005	$ 1,715
Other service fee income
NONINTEREST INCOME
Noninterest income	473	459	311
Debit card interchange fee income
NONINTEREST INCOME
Noninterest income	787	777	348
Trust custodial account fees
NONINTEREST INCOME
Noninterest income	7,222	7,296	0
Escrow and exchange fees
NONINTEREST INCOME
Noninterest income	$ 1,526	$ 1,257	$ 0