Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest income
Loans and lease financing	$ 144,691	$ 135,394	$ 435,980	$ 389,228
Available-for-sale securities	22,256	25,196	71,526	81,586
Other	3,234	3,462	9,054	7,193
Total interest income	170,181	164,052	516,560	478,007
Interest expense
Deposits	22,753	20,205	69,643	52,824
Short-term and long-term borrowings	4,347	2,589	13,134	2,850
Total interest expense	27,100	22,794	82,777	55,674
Net interest income	143,081	141,258	433,783	422,333
Provision for loan and lease losses		4,460	9,550	16,430
Net interest income after provision for loan and lease losses	143,081	136,798	424,233	405,903
Noninterest income
Service charges on deposit accounts	8,554	7,933	24,737	23,609
Credit and debit card fees	16,839	16,535	50,123	48,961
Other service charges and fees	8,903	9,578	27,435	28,553
Trust and investment services income	8,698	7,487	26,247	23,429
Bank-owned life insurance	5,743	3,692	12,946	8,131
Investment securities losses, net			(2,592)
Other	1,243	2,180	6,929	13,219
Total noninterest income	49,980	47,405	145,825	145,902
Noninterest expense
Salaries and employee benefits	44,955	41,959	132,000	125,755
Contracted services and professional fees	14,649	11,478	42,597	36,770
Occupancy	7,250	6,757	21,522	20,149
Equipment	4,024	4,181	12,852	13,104
Regulatory assessment and fees	1,992	3,966	5,588	12,164
Advertising and marketing	1,647	1,060	5,593	3,126
Card rewards program	6,930	5,805	21,326	17,882
Other	12,019	17,941	37,901	46,649
Total noninterest expense	93,466	93,147	279,379	275,599
Income before provision for income taxes	99,595	91,056	290,679	276,206
Provision for income taxes	25,396	23,668	74,123	71,807
Net income	$ 74,199	$ 67,388	$ 216,556	$ 204,399
Basic earnings per share (in dollars per share)	$ 0.56	$ 0.50	$ 1.62	$ 1.48
Diluted earnings per share (in dollars per share)	$ 0.56	$ 0.50	$ 1.61	$ 1.48
Basic weighted-average outstanding shares (in shares)	132,583,902	135,466,669	133,957,192	137,643,005
Diluted weighted-average outstanding shares (in shares)	132,877,769	135,675,498	134,231,762	137,809,573