CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest income
Loans and lease financing	$ 748,053	$ 509,820	$ 444,488
Available-for-sale investment securities	74,241	87,108	101,410
Held-to-maturity investment securities	73,497	55,376
Other	27,788	10,916	3,413
Total interest income	923,579	663,220	549,311
Interest expense
Deposits	258,221	49,201	13,853
Short-term and long-term borrowings	26,289	470	4,899
Other	2,942
Total interest expense	287,452	49,671	18,752
Net interest income	636,127	613,549	530,559
Provision for credit losses	26,630	1,392	(39,000)
Net interest income after provision for credit losses	609,497	612,157	569,559
Noninterest income
Service charges on deposit accounts	29,647	28,809	27,510
Credit and debit card fees	63,888	66,028	63,580
Other service charges and fees	37,299	37,036	38,578
Trust and investment services income	38,449	36,465	34,719
Bank-owned life insurance	15,326	1,248	13,185
Investment securities gains, net	792		102
Other	15,414	9,939	7,242
Total noninterest income	200,815	179,525	184,916
Noninterest expense
Salaries and employee benefits	225,755	199,129	182,384
Contracted services and professional fees	66,423	70,027	63,349
Occupancy	29,608	31,034	29,348
Equipment	45,109	34,506	24,719
Regulatory assessment and fees	32,073	9,603	8,245
Advertising and marketing	7,615	7,996	6,108
Card rewards program	31,627	30,990	25,244
Other	62,928	57,186	66,082
Total noninterest expense	501,138	440,471	405,479
Income before provision for income taxes	309,174	351,211	348,996
Provision for income taxes	74,191	85,526	83,261
Net income	$ 234,983	$ 265,685	$ 265,735
Basic earnings per share (in dollars per share)	$ 1.84	$ 2.08	$ 2.06
Diluted earnings per share (in dollars per share)	$ 1.84	$ 2.08	$ 2.05
Basic weighted-average outstanding shares (in shares)	127,567,547	127,489,889	128,963,131
Diluted weighted-average outstanding shares (in shares)	127,915,873	127,981,699	129,537,922