Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest income
Interest and fees on loans	$ 170,926	$ 129,625
Interest Income, Securities, Operating, Taxable	15,309	10,043
Nontaxable interest and dividends on securities	1	1
Interest on loans held for sale	34	64
Interest on federal funds sold and short-term investments	665	886
Total interest and dividend income	186,935	140,619
Interest expense
Interest on deposits	22,675	2,107
Interest on borrowings	5,262	1,080
Total interest expense	27,937	3,187
Net interest income	158,998	137,432
Provision for (release of) credit losses	7,250	(2,000)
Net interest income after provision for credit losses	151,748	139,432
Noninterest income
Deposit account fees	5,916	5,493
Interchange and ATM fees	4,184	3,609
Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions	9,779	8,673
Mortgage banking income	308	1,362
Bank Owned Life Insurance Income	1,854	1,795
Gain Realized on Life Insurance Policies	(11)	0
Loan level derivative income	408	604
Other noninterest income	5,782	4,736
Total noninterest income	28,242	26,272
Noninterest expenses
Salaries and employee benefits	56,975	48,711
Occupancy and equipment expenses	12,822	13,302
Data processing & facilities management	2,527	2,372
Business Combination, Acquisition Related Costs	0	7,100
Software Maintenance	2,949	2,564
Amortization of Intangible Assets	1,815	2,001
FDIC assessment	2,610	1,805
Debit card expense	2,171	1,765
Professional Fees	2,077	1,750
Other noninterest expenses	14,715	14,130
Total noninterest expenses	98,661	95,500
Income before income taxes	81,329	70,204
Current Federal, State and Local, Tax Expense (Benefit)	20,082	17,107
Net income	$ 61,247	$ 53,097
Basic earnings per share (in dollars per share)	$ 1.36	$ 1.12
Diluted earnings per share (in dollars per share)	$ 1.36	$ 1.12
Weighted average common shares (basic) (in shares)	45,004,100	47,366,753
Common shares equivalents (in shares)	19,564	20,711
Weighted average common shares (diluted) (in shares)	45,023,664	47,387,464
Retained Earnings [Member]
Noninterest expenses
Net income	$ 61,247	$ 53,097
Cash dividends declared per common share (in dollars per share)	$ 0.55	$ 0.51