CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Cash Flows from Operating Activities
Net income	$ 91,430	$ 74,151
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	5,721	4,425
Accretion of discounts on securities, net	(9,222)	(1,974)
Amortization of operating lease ROUAs	5,215	4,487
Other amortization and accretion, net	9,380	1,280
Stock-based compensation	10,000	6,996
Origination of loans designated for sale	(160,001)	(44,862)
Sale of loans designated for sale	161,956	56,171
Provision for credit losses	9,758	13,629
Deferred income taxes	3,801	3,195
Losses (gains) on securities	39,587	(235)
Gains on sale of loans	(4,119)	(3,025)
Losses (gains) on sale and write-downs of bank premises, equipment and OREO	212	(15)
Changes in operating assets and liabilities:
Net increase in other assets	(9,546)	(11,699)
Net (decrease) increase in other liabilities	(20,654)	809
Net cash provided by operating activities	133,518	103,333
Cash Flows from Investing Activities
Maturities and repayments of debt securities AFS	348,441	208,717
Maturities and repayments of debt securities HTM	21,997	21,920
Proceeds from sale of debt securities AFS	277,155	0
Purchases of debt securities AFS	(675,752)	(794,370)
Maturities and redemptions of time deposits with other banks	13,677	1,721
Net new loans and principal repayments	(525,865)	(323,887)
Proceeds from the sale of loans held for investment	13,531	14,510
Proceeds from sale of OREO	989	2,707
Proceeds from sale of FHLB and Federal Reserve Bank stock	34,923	22,802
Purchase of FHLB and Federal Reserve Bank stock	(37,918)	(45,762)
Proceeds from BOLI death benefit	0	1,962
Additions to bank premises and equipment	(6,766)	(4,637)
Net cash used in investing activities	(535,588)	(894,317)
Cash Flows from Financing Activities
Net increase in deposits	535,952	255,171
Net decrease in repurchase agreements	(15,908)	(45,981)
Net increase of FHLB borrowings with original maturities of three months or less	150,000	100,000
Repayments of FHLB borrowings with original maturities of more than three months	(560,000)	(30,000)
Proceeds from FHLB borrowings with original maturities of more than three months	410,000	400,000
Stock-based employee benefit plans	(1,648)	(1,425)
Repurchase of common stock	(33,327)	0
Dividends paid	(41,600)	(30,960)
Net cash provided by financing activities	443,469	646,805
Net increase (decrease) in cash and cash equivalents	41,399	(144,179)
Cash and cash equivalents at beginning of period	388,545	476,607
Cash and cash equivalents at end of period	429,944	332,428
Supplemental disclosure of cash flow information:
Cash paid for interest	151,295	132,851
Cash paid for taxes, net	16,910	5,380
Recognition of operating lease ROUAs, other than through bank acquisitions, net of terminations	2,786	7,796
Recognition of operating lease liabilities, other than through bank acquisitions, net of terminations	2,824	7,796
Supplemental disclosure of non-cash investing activities:
Transfers from loans to OREO	$ 0	$ 1,116