CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income
Loans and lease financing	$ 120,940	$ 144,691	$ 378,209	$ 435,980
Available-for-sale securities	20,317	22,256	59,056	71,526
Other	670	3,234	3,813	9,054
Total interest income	141,927	170,181	441,078	516,560
Interest expense
Deposits	6,227	22,753	30,410	69,643
Short-term and long-term borrowings	1,698	4,347	10,161	13,134
Total interest expense	7,925	27,100	40,571	82,777
Net interest income	134,002	143,081	400,507	433,783
Provision for credit losses	5,072		101,718	9,550
Net interest income after provision for credit losses	128,930	143,081	298,789	424,233
Noninterest income
Service charges on deposit accounts	6,523	8,554	21,400	24,737
Credit and debit card fees	14,049	16,839	39,868	50,123
Other service charges and fees	9,021	8,903	25,472	27,435
Trust and investment services income	8,664	8,698	26,919	26,247
Bank-owned life insurance	4,903	5,743	11,595	12,946
Investment securities gains (losses), net	24		(102)	(2,592)
Other	5,714	1,243	18,630	6,929
Total noninterest income	48,898	49,980	143,782	145,825
Noninterest expense
Salaries and employee benefits	44,291	44,955	131,534	132,000
Contracted services and professional fees	15,073	14,649	46,606	42,597
Occupancy	6,921	7,250	21,466	21,522
Equipment	5,137	4,024	15,052	12,852
Regulatory assessment and fees	2,445	1,992	6,491	5,588
Advertising and marketing	1,374	1,647	4,599	5,593
Card rewards program	5,046	6,930	17,224	21,326
Other	11,342	12,019	36,573	37,901
Total noninterest expense	91,629	93,466	279,545	279,379
Income (loss) before (provision) benefit for income taxes	86,199	99,595	163,026	290,679
Provision for income taxes	21,098	25,396	39,011	74,123
Net income (loss)	$ 65,101	$ 74,199	$ 124,015	$ 216,556
Basic earnings per share (in dollars per share)	$ 0.50	$ 0.56	$ 0.95	$ 1.62
Diluted earnings per share (in dollars per share)	$ 0.50	$ 0.56	$ 0.95	$ 1.61
Basic weighted-average outstanding shares (in shares)	129,896,054	132,583,902	129,882,878	133,957,192
Diluted weighted-average outstanding shares (in shares)	130,085,534	132,877,769	130,129,690	134,231,762