CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest and divided income:
Loans	$ 173,787	$ 179,973
Investment securities	23,247	14,320
Money martket investments and interest-bearing cash accounts	820	349
Total interest income and dividend income	197,854	194,642
Interest expense:
Deposits	7,652	12,342
Securities sold under agreements to repurchase	2,182	2,278
Advances from FHLB	1,063	2,463
Other borrowings	1,333	1,294
Total interest expense	12,230	18,377
Net interest income	185,624	176,265
Provision for credit losses - (benefit) expense:
Loans and finance leases	(16,989)	(14,443)
Provision for credit losses - (benefit) expense	(13,802)	(15,252)
Net interest income after provision for credit losses	199,426	191,517
Non-interest income:
Service charges and fees on deposit accounts	9,363	8,304
Mortgage banking activities	5,206	7,273
Insurance commission income	5,275	5,241
Other non-interest income	13,014	10,138
Total non-interest income	32,858	30,956
Non-interest expenses:
Employees' compensation and benefits	49,554	50,842
Occupancy and equipment	22,386	24,242
Business promotion	3,463	2,970
Professional fees	10,594	17,701
Taxes, other than income taxes	5,018	6,199
FDIC deposit insurance	1,673	1,988
Net (gain) loss on OREO and OREO expenses	(720)	1,898
Credit and debit card processing expenses	4,121	4,278
Communications	2,151	2,462
Merger and restructuring costs	0	11,267
Other non-interest expenses	8,419	9,454
Total non-interest expenses	106,659	133,301
Income before income taxes	125,625	89,172
Income tax expense	43,025	28,022
Net income	82,600	61,150
Net income attributable to common stockholders	$ 82,600	$ 60,481
Net income per common share:
Basic	$ 0.42	$ 0.28
Diluted	$ 0.41	$ 0.28
Debt Securities [Member]
Provision for credit losses - (benefit) expense:
Other credit losses	$ 3,365	$ (103)
Unfunded Loan Commitment [Member]
Provision for credit losses - (benefit) expense:
Other credit losses	$ (178)	$ (706)