Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net income	$ 53,485	$ 56,712
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,725	4,975
Depreciation, amortization and accretion, net	6,963	10,718
Deferred income tax expense	(330)	463
Gain on sale of mortgage loans held for sale	(1,024)	(745)
Origination of mortgage loans held for sale	(51,464)	(55,391)
Proceeds from sale of mortgage loans held for sale	52,106	51,673
Bank owned life insurance income	(1,183)	(1,108)
Loss on the disposal of premises and equipment	(20)	227
Stock compensation expense	1,950	2,187
Excess tax benefit from share-based compensation arrangements	(22)	(530)
Net change in accrued interest receivable and other assets	(3,052)	(40,833)
Net change in accrued interest payable and other liabilities	8,397	15,535
Net cash provided by operating activities	68,531	43,883
Cash flows from investing activities:
Purchases of available for sale debt securities	0	(170)
Proceeds from maturities and paydowns of available for sale debt securities	61,407	58,501
Proceeds from maturities and paydowns of held to maturity debt securities	59,286	23,303
Purchases of FHLB stock	(27,087)	(16,438)
Proceeds from redemption of FHLB stock	11,861	0
Net change in loans	(298,460)	(214,123)
Purchases of premises and equipment	(5,072)	(3,472)
Proceeds from sale or disposal of premises and equipment	223	411
Other investment activities	(8,579)	(506)
Net cash used in investing activities	(206,421)	(152,494)
Cash flows from financing activities:
Net change in deposits	(101,510)	(182,872)
Net change in securities sold under agreements to repurchase and federal funds purchased	(2,866)	7,862
Proceeds from FHLB advances	1,575,000	1,400,000
Repayments of FHLB advances	(1,375,000)	(1,050,000)
Repurchase of common stock	(1,687)	(2,380)
Cash dividends paid	(17,655)	(17,036)
Net cash provided by financing activities	76,282	155,574
Net change in cash and cash equivalents	(61,608)	46,963
Beginning cash and cash equivalents	265,959	167,367
Ending cash and cash equivalents	204,351	214,330
Supplemental cash flow information:
Interest paid	74,696	38,125
Income taxes paid, net of refunds	7,188	17,010
Cash paid for operating lease liabilities	2,373	2,126
Supplemental non-cash activity:
Change in unfunded commitments in tax credit investments	9,250	49,012
Dividends payable to stockholders	201	183
Premises and equipment transferred to premises held for sale	$ 0	$ 715