CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net income	$ 18,571	$ 20,628	$ 24,360	$ 16,271	$ 58,896	$ 64,410
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and accretion					14,188	3,969
Provision for credit loss					2,650	13,250
Loss on sale or write-down of ORE					199	753
Securities (gain) loss					(191)	46
Loss (gain) on disposal of premises and equipment					181	(559)
Restricted stock expense					1,994	1,650
Increase in cash value of life insurance					(2,852)	(2,390)
Federal Home Loan Bank stock dividends					(301)	(279)
Residential loans originated and held for sale					(65,936)	(76,169)
Proceeds from sale of residential loans held for sale					65,863	74,652
Changes in:
Interest receivable					(84)	1,530
Interest payable					(8,982)	10,476
Operating lease liability					(419)	(1,208)
Other, net					2,602	(9,774)
Net cash provided by operating activities					67,808	80,357
Available-for-sale securities:
Sales					0	171,150
Maturities, prepayments, and calls					206,577	88,490
Purchases					(198,269)	0
Held-to-maturity securities:
Maturities, prepayments, and calls					51,961	35,827
Purchases of other securities					(14,835)	(10,563)
Proceeds from other securities					3,991	8,741
Net increase in loans					(143,941)	(145,047)
Net changes in premises and equipment					(2,293)	(2,749)
Proceeds from sale of other real estate owned					1,077	1,098
Proceeds from the sale of premises and equipment					424	1,416
Benefits received on bank owned life insurance policies					522	0
Cash received in excess of cash paid for acquisitions					0	106,973
Net cash (used in) provided by investing activities					(94,786)	255,336
Cash flows from financing activities:
Increase (decrease) in deposits					91,982	(408,603)
Proceeds from borrowed funds					2,615,700	3,346,693
Repayments of borrowed funds					(2,798,200)	(3,174,793)
Principal payments on finance lease liabilities					(137)	(134)
Dividends paid on common stock					(22,995)	(20,200)
Called/repayment of subordinated debt					0	(26,000)
Repurchase of restricted stock for payment of taxes					(384)	(339)
Net cash used in financing activities					(114,034)	(283,376)
Net change in cash and cash equivalents					(141,012)	52,317
Beginning cash and cash equivalents		$ 355,147		145,315	355,147	145,315	$ 145,315
Ending cash and cash equivalents	$ 214,135		$ 197,632		214,135	197,632	$ 355,147
Cash paid during the year for:
Interest					98,453	33,966
Income taxes, (net of refunds)					14,798	9,284
Non-cash activities:
Loans transferred to other real estate					1,112	1,543
Issuance of restricted stock grants					147	168
Dividends on restricted stock grants					362	273
Stock issued in connection with HSBI acquisition				$ 221,522
Lease liabilities arising from obtaining right-of-use assets					482	560
HSBI
Non-cash activities:
Stock issued in connection with HSBI acquisition					0	221,522
Lease liabilities arising from HSBI acquisition					$ 0	$ 184