Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest income
Loans and fees on loans	$ 89,198	$ 84,993
Investment securities, taxable	3,399	2,929
Other interest earning assets	185	303
Total interest income	92,782	88,225
Interest expense
Deposits	14,348	16,944
Borrowings	655	1,331
Total interest expense	15,003	18,275
Net interest income	77,779	69,950
Provision for (recovery of) loan and lease credit losses	1,836	(873)
Net interest income after provision for (recovery of) loan and lease credit losses	75,943	70,823
Noninterest income
Loan servicing revenue	6,356	6,434
Loan servicing asset revaluation	(1,569)	1,493
Net gains on sales of loans	20,977	11,929
Net gain on loans accounted for under the fair value option	516	4,218
Equity method investments income (loss)	(2,124)	(1,157)
Equity security investments gains (losses), net	(44)	105
Lease income	2,503	2,599
Management fee income	1,488	1,934
Other noninterest income	4,565	3,502
Total noninterest income	32,668	31,057
Noninterest expense
Salaries and employee benefits	38,507	31,366
Travel expense	1,897	659
Professional services expense	2,791	3,831
Advertising and marketing expense	1,729	652
Occupancy expense	2,327	2,112
Technology expense	6,053	4,878
Equipment expense	3,816	3,701
Other loan origination and maintenance expense	3,113	3,327
Renewable energy tax credit investment impairment		3,127
FDIC insurance	1,972	1,765
Other expense	3,509	2,854
Total noninterest expense	65,714	58,272
Income before taxes	42,897	43,608
Income tax expense	8,388	4,181
Net income	$ 34,509	$ 39,427
Basic earnings per share	$ 0.79	$ 0.92
Diluted earnings per share	$ 0.76	$ 0.88