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	$ 56,250	$ 43,076
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,262	4,071
Accretion of discounts on securities, net	(1,455)	(424)
Amortization of operating lease right-of-use assets	4,087	3,961
Other amortization and accretion, net	1,068	(10,558)
Stock based compensation	6,105	7,096
Origination of loans designated for sale	(58,002)	(56,526)
Sale of loans designated for sale	59,240	55,710
Provision for credit losses	6,286	30,834
Deferred income taxes	6,933	(9,439)
Gain on securities	(185)	(69)
Gains on sale of loans	(3,435)	(1,828)
Gains on sale and write-downs of other real estate owned	(135)	(64)
Losses on disposition of fixed assets and write-downs upon transfer of bank premises to other real estate owned	289	1,726
Changes in operating assets and liabilities, net of effects from acquired companies:
Net decrease in other assets	7,204	14,511
Net decrease in other liabilities	(6,977)	(24,002)
Net cash provided by operating activities	81,535	58,075
Cash Flows from Investing Activities
Maturities and repayments of debt securities available-for-sale	144,875	107,590
Maturities and repayments of debt securities held-to-maturity	22,328	41,995
Proceeds from sale of debt securities available-for-sale	86,829	30,490
Purchases of debt securities available-for-sale	(376,726)	(22,402)
Maturities and redemptions of time deposits with other banks	1,483	249
Purchases of time deposits with other banks	(3,482)	0
Net new loans and principal repayments	12,219	53,434
Proceeds from the sale of loans held for investment	10,905	0
Proceeds from sale of other real estate owned	2,654	294
Proceeds from sale of FHLB and Federal Reserve Bank Stock	11,310	71,352
Purchase of FHLB and Federal Reserve Bank Stock	(17,538)	(87,273)
Proceeds from sale of Visa Class B shares	4,104	0
Net cash from bank acquisitions	0	141,674
Additions to bank premises and equipment	(2,939)	(8,827)
Net cash (used in) provided by investing activities	(103,978)	328,576
Cash Flows from Financing Activities
Net increase in deposits	339,184	182,331
Net (decrease) increase in repurchase agreements	(112,470)	118,127
Net decrease in FHLB borrowings with original maturities of three months or less	0	(170,000)
Repayments of FHLB borrowings with original maturities of more than three months	(160,000)	(75,000)
Proceeds from FHLB borrowings with original maturities of more than three months	290,000	110,000
Stock based employee benefit plans	(298)	3,731
Repurchase of common stock	(880)	(45)
Dividends paid	(30,750)	(29,852)
Net cash provided by financing activities	324,786	139,292
Net increase in cash and cash equivalents	302,343	525,943
Cash and cash equivalents at beginning of period	447,182	201,940
Cash and cash equivalents at end of period	749,525	727,883
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	144,396	67,991
Cash paid during the period for taxes	5,888	6,080
Recognition of operating lease right-of-use assets, other than through bank acquisitions, net of terminations	0	1,890
Recognition of operating lease liabilities, other than through bank acquisitions, net of terminations	0	1,902
Supplemental disclosure of non-cash investing activities:
Transfers from loans to other real estate owned	953	0
Transfers from bank premises to other real estate owned	$ 883	$ 5,455