CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest income
Loans and lease financing	$ 110,919	$ 122,298	$ 221,858	$ 257,269
Available-for-sale securities	24,637	17,529	47,783	38,739
Other	666	792	1,157	3,143
Total interest income	136,222	140,619	270,798	299,151
Interest expense
Deposits	3,363	8,583	7,419	24,183
Short-term and long-term borrowings	1,378	4,214	2,740	8,463
Total interest expense	4,741	12,797	10,159	32,646
Net interest income	131,481	127,822	260,639	266,505
Provision for credit losses	(35,000)	55,446	(35,000)	96,646
Net interest income (expense) after provision for credit losses	166,481	72,376	295,639	169,859
Noninterest income
Service charges on deposit accounts	6,632	5,927	13,350	14,877
Credit and debit card fees	16,746	10,870	31,297	25,819
Other service charges and fees	10,303	7,912	19,149	16,451
Trust and investment services income	8,707	8,664	17,199	18,255
Bank-owned life insurance	3,104	4,432	5,493	6,692
Investment securities gains (losses), net	102	(211)	102	(126)
Other	3,777	8,062	6,649	12,916
Total noninterest income	49,371	45,656	93,239	94,884
Noninterest expense
Salaries and employee benefits	45,982	42,414	89,918	87,243
Contracted services and professional fees	16,516	15,478	33,704	31,533
Occupancy	7,314	7,302	14,484	14,545
Equipment	6,362	5,207	11,853	9,915
Regulatory assessment and fees	1,826	2,100	3,860	4,046
Advertising and marketing	1,469	1,402	3,060	3,225
Card rewards program	6,262	5,163	11,097	12,178
Other	13,657	12,384	27,718	25,231
Total noninterest expense	99,388	91,450	195,694	187,916
Income before provision for income taxes	116,464	26,582	193,184	76,827
Provision for income taxes	29,723	6,533	48,750	17,913
Net income (loss)	$ 86,741	$ 20,049	$ 144,434	$ 58,914
Basic earnings per share (in dollars per share)	$ 0.67	$ 0.15	$ 1.11	$ 0.45
Diluted earnings per share (in dollars per share)	$ 0.67	$ 0.15	$ 1.11	$ 0.45
Basic weighted-average outstanding shares (in shares)	129,392,339	129,856,730	129,661,228	129,876,218
Diluted weighted-average outstanding shares (in shares)	129,828,847	130,005,195	130,164,762	130,163,722