CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest income
Loans and lease financing	$ 110,765	$ 120,940	$ 332,623	$ 378,209
Available-for-sale securities	25,234	20,317	73,017	59,056
Other	1,205	670	2,362	3,813
Total interest income	137,204	141,927	408,002	441,078
Interest expense
Deposits	3,218	6,227	10,637	30,410
Short-term and long-term borrowings	1,393	1,698	4,133	10,161
Total interest expense	4,611	7,925	14,770	40,571
Net interest income	132,593	134,002	393,232	400,507
Provision for credit losses	(4,000)	5,072	(39,000)	101,718
Net interest income after provision for credit losses	136,593	128,930	432,232	298,789
Noninterest income
Service charges on deposit accounts	6,989	6,523	20,339	21,400
Credit and debit card fees	16,017	14,049	47,314	39,868
Other service charges and fees	10,233	9,021	29,382	25,472
Trust and investment services income	8,625	8,664	25,824	26,919
Bank-owned life insurance	4,841	4,903	10,334	11,595
Investment securities gains (losses), net		24	102	(102)
Other	3,399	5,714	10,048	18,630
Total noninterest income	50,104	48,898	143,343	143,782
Noninterest expense
Salaries and employee benefits	46,484	44,291	136,402	131,534
Contracted services and professional fees	15,042	15,073	48,746	46,606
Occupancy	6,790	6,921	21,274	21,466
Equipment	6,549	5,137	18,402	15,052
Regulatory assessment and fees	1,828	2,445	5,688	6,491
Advertising and marketing	1,469	1,374	4,529	4,599
Card rewards program	6,676	5,046	17,773	17,224
Other	16,198	11,342	43,916	36,573
Total noninterest expense	101,036	91,629	296,730	279,545
Income before provision for income taxes	85,661	86,199	278,845	163,026
Provision for income taxes	21,382	21,098	70,132	39,011
Net income	$ 64,279	$ 65,101	$ 208,713	$ 124,015
Basic earnings per share (in dollars per share)	$ 0.50	$ 0.50	$ 1.61	$ 0.95
Diluted earnings per share (in dollars per share)	$ 0.50	$ 0.50	$ 1.61	$ 0.95
Basic weighted-average outstanding shares (in shares)	128,660,038	129,896,054	129,323,973	129,882,878
Diluted weighted-average outstanding shares (in shares)	129,210,448	130,085,534	129,895,311	130,129,690