Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Interest income:
Loans	$ 191,397	$ 191,505	$ 561,154	$ 567,280
Debt securities:
Taxable	21,175	13,067	57,702	36,251
Nontaxable	8,650	5,921	23,583	17,484
Interest-earning deposits	3,638	5,348	12,130	13,306
Dividends on equity securities	530	463	1,568	1,350
Total interest income	225,390	216,304	656,137	635,671
Interest expense:
Deposits	61,615	68,768	180,860	199,615
Subordinated debentures and notes	2,683	2,695	7,982	7,863
FHLB advances	1,207	59	3,295	1,649
Other borrowings	1,599	1,313	5,436	4,818
Total interest expense	67,104	72,835	197,573	213,945
Net interest income	158,286	143,469	458,564	421,726
Provision for credit losses	8,447	4,099	17,101	14,674
Net interest income after provision for credit losses	149,839	139,370	441,463	407,052
Noninterest income:
Total noninterest income	48,624	21,420	87,711	49,072
Noninterest expense:
Employee compensation and benefits	49,640	45,359	148,012	135,145
Deposit costs	27,172	23,781	75,760	65,764
Occupancy	4,895	4,372	14,390	12,895
Data processing	5,022	5,548	14,544	15,226
Professional fees	2,620	1,595	6,377	4,328
Other expense	20,441	17,352	56,192	52,167
Total noninterest expense	109,790	98,007	315,275	285,525
Income before income tax expense	88,673	62,783	213,899	170,599
Income tax expense (includes $32.1 million related to recaptured tax credits for the three and nine months ended September 30, 2025) (Note 13)	43,438	12,198	67,319	34,167
Net income	45,235	50,585	146,580	136,432
Dividends on preferred stock	938	938	2,813	2,813
Net income available to common stockholders	$ 44,297	$ 49,647	$ 143,767	$ 133,619
Earnings per common share
Basic (usd per share)	$ 1.20	$ 1.33	$ 3.89	$ 3.57
Diluted (usd per share)	$ 1.19	$ 1.32	$ 3.86	$ 3.56
Deposit service charges
Noninterest income:
Total noninterest income	$ 4,935	$ 4,649	$ 14,295	$ 13,614
Wealth management revenue
Noninterest income:
Total noninterest income	2,571	2,599	7,814	7,733
Card services revenue
Noninterest income:
Total noninterest income	2,535	2,573	7,374	7,482
Tax credit income (loss)
Noninterest income:
Total noninterest income	(300)	3,252	4,517	2,936
Other income
Noninterest income:
Total noninterest income	$ 38,883	$ 8,347	$ 53,711	$ 17,307