Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 141,641	$ 159,715	$ 148,931	$ 113,895	$ 113,895
Allowance on PCD Loans Acquired During the Period				18,879
Provision for Credit Losses	6,273	2,694	12,559	33,528
Charge- Offs	(8,584)	(13,123)	(24,637)	(19,468)	(24,795)
Recoveries	1,139	375	3,616	2,827
Ending Balance	140,469	149,661	140,469	149,661	148,931
Construction and land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	5,493	6,960	8,637	6,464	6,464
Allowance on PCD Loans Acquired During the Period				5
Provision for Credit Losses	1,562	725	(1,593)	1,208
Charge- Offs	0	0	(1)	0	0
Recoveries	3	0	15	8
Ending Balance	7,058	7,685	7,058	7,685	8,637
Commercial real estate - owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	11,582	6,418	5,529	6,051	6,051
Allowance on PCD Loans Acquired During the Period				139
Provision for Credit Losses	338	(353)	6,688	(127)
Charge- Offs	(2)	0	(304)	0	0
Recoveries	0	0	5	2
Ending Balance	11,918	6,065	11,918	6,065	5,529
Commercial real estate - non-owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	45,434	54,103	48,288	43,258	43,258
Allowance on PCD Loans Acquired During the Period				647
Provision for Credit Losses	826	(1,677)	(2,049)	8,461
Charge- Offs	(602)	0	(705)	(109)	(120)
Recoveries	18	15	142	184
Ending Balance	45,676	52,441	45,676	52,441	48,288
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	39,209	36,710	39,016	29,605	29,605
Allowance on PCD Loans Acquired During the Period				400
Provision for Credit Losses	(159)	2,009	(152)	8,659
Charge- Offs	(6)	(44)	(128)	(312)	(356)
Recoveries	104	60	412	383
Ending Balance	39,148	38,735	39,148	38,735	39,016
Commercial and financial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	28,429	40,272	34,343	15,648	15,648
Allowance on PCD Loans Acquired During the Period				17,527
Provision for Credit Losses	3,003	2,932	6,208	11,548
Charge- Offs	(6,180)	(11,814)	(16,786)	(15,183)	(18,565)
Recoveries	726	135	2,213	1,985
Ending Balance	25,978	31,525	25,978	31,525	34,343
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	11,494	15,252	13,118	12,869	12,869
Allowance on PCD Loans Acquired During the Period				161
Provision for Credit Losses	703	(942)	3,457	3,779
Charge- Offs	(1,794)	(1,265)	(6,713)	(3,864)	(5,754)
Recoveries	288	165	829	265
Ending Balance	$ 10,691	$ 13,210	$ 10,691	$ 13,210	$ 13,118