Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest income
Loans and lease financing	$ 134,971	$ 144,406
Available-for-sale securities	21,210	24,486
Other	2,351	3,669
Total interest income	158,532	172,561
Interest expense
Deposits	15,600	23,197
Short-term and long-term borrowings	4,249	4,275
Total interest expense	19,849	27,472
Net interest income	138,683	145,089
Provision for credit losses	41,200	5,680
Net interest income after provision for loan and lease losses	97,483	139,409
Noninterest income
Service charges on deposit accounts	8,950	8,060
Credit and debit card fees	14,949	16,655
Other service charges and fees	8,539	9,129
Trust and investment services income	9,591	8,618
Bank-owned life insurance	2,260	3,813
Investment securities gains (losses), net	85	(2,613)
Other	4,854	3,410
Total noninterest income	49,228	47,072
Noninterest expense
Salaries and employee benefits	44,829	44,860
Contracted services and professional fees	16,055	13,645
Occupancy	7,243	6,986
Equipment	4,708	4,284
Regulatory assessment and fees	1,946	1,447
Advertising and marketing	1,823	1,966
Card rewards program	7,015	6,732
Other	12,847	12,703
Total noninterest expense	96,466	92,623
Income before provision for income taxes	50,245	93,858
Provision for income taxes	11,380	23,934
Net income (loss)	$ 38,865	$ 69,924
Basic earnings per share (in dollars per share)	$ 0.30	$ 0.52
Diluted earnings per share (in dollars per share)	$ 0.30	$ 0.52
Basic weighted-average outstanding shares (in shares)	129,895,706	134,879,336
Diluted weighted-average outstanding shares (in shares)	130,351,585	135,198,345