Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Activity in Allowance for Loan Losses for Loans (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 109,853	$ 90,967	$ 90,967
Initial ACL for acquired PCD loans		5,610	5,610
Charge-offs	(2,115)	(2,621)	(10,175)
Recoveries	529	989	3,701
Provisions / (Reversals)	1,800	11,451	19,750
Ending balance	110,067	106,396	109,853
Commercial and industrial
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	21,227	17,718	17,718
Initial ACL for acquired PCD loans		5,197	5,197
Charge-offs	(1,585)	(2,177)	(8,358)
Recoveries	243	274	1,393
Provisions / (Reversals)	409	2,061	5,277
Ending balance	20,294	23,073	21,227
Real estate, commercial | Construction, development & other land loans
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	13,940	15,128	15,128
Initial ACL for acquired PCD loans		49	49
Charge-offs	(79)	0	(120)
Recoveries	97	65	370
Provisions / (Reversals)	(2,175)	3,744	(1,487)
Ending balance	11,783	18,986	13,940
Real estate, commercial | Commercial real estate - owner occupied
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	18,218	14,972	14,972
Initial ACL for acquired PCD loans		191	191
Charge-offs	(58)	0	(144)
Recoveries	4	36	465
Provisions / (Reversals)	(1)	883	2,734
Ending balance	18,163	16,082	18,218
Real estate, commercial | Commercial real estate - non owner occupied
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	24,916	22,780	22,780
Initial ACL for acquired PCD loans		51	51
Charge-offs	(158)	(235)	(235)
Recoveries	2	394	737
Provisions / (Reversals)	1,492	3,000	1,583
Ending balance	26,252	25,990	24,916
Real estate, commercial | Multi-family real estate
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,825	2,957	2,957
Initial ACL for acquired PCD loans		0	0
Charge-offs	0	0	0
Recoveries	0	4	13
Provisions / (Reversals)	597	243	855
Ending balance	4,422	3,204	3,825
Real estate, mortgage | Residential 1-4 family real estate
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	21,396	11,354	11,354
Initial ACL for acquired PCD loans		113	113
Charge-offs	0	0	(4)
Recoveries	121	146	377
Provisions / (Reversals)	1,187	672	9,556
Ending balance	22,704	12,285	21,396
Real estate, mortgage | Home equity loans/lines of credit
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,339	3,158	3,158
Initial ACL for acquired PCD loans		8	8
Charge-offs	0	(2)	(309)
Recoveries	5	34	98
Provisions / (Reversals)	(8)	283	384
Ending balance	3,336	3,481	3,339
Consumer loans
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,992	2,900	2,900
Initial ACL for acquired PCD loans		1	1
Charge-offs	(235)	(207)	(1,005)
Recoveries	57	36	248
Provisions / (Reversals)	299	565	848
Ending balance	$ 3,113	$ 3,295	$ 2,992