Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating Activities
Net income	$ 165,097	$ 123,056
Adjustments reconciling net income to net cash (used in) provided by operating activities:
Depreciation	9,640	9,409
Net losses on sale or disposal of premises and equipment	9	74
Provision for credit losses	39,878	95,245
Net write-downs and (gains) losses on sale of other real estate owned	(25)	37
Share-based compensation expense	5,642	4,429
Amortization of intangible assets	8,829	9,394
Amortization of operating lease right of use assets	5,037	5,672
Provision for deferred taxes	(10,652)	(10,507)
Net accretion of debt securities available-for-sale	(2,276)	(2,834)
Net accretion of debt securities held-to-maturity	(87)	(88)
Net amortization of other investments	571	753
Net (gain) loss on securities	(12,328)	0
Net amortization (accretion) of fair value marks on purchased loans	648	(464)
Net amortization on other borrowings	137	703
Amortization of subordinated deferrable interest debentures	997	997
Originations of mortgage loans held for sale	(2,115,354)	(1,839,990)
Payments received on mortgage loans held for sale	7,220	8,629
Proceeds from sales of mortgage loans held for sale	1,834,290	1,826,177
Net gains on mortgage loans held for sale	(22,359)	(819)
Originations of SBA loans	(5,364)	(22,506)
Proceeds from sales of SBA loans	5,096	24,972
Net gains on sale of SBA loans	(435)	(1,231)
Increase in cash surrender value of bank owned life insurance	(4,727)	(4,482)
Gain on bank owned life insurance proceeds	(1,464)	(486)
Gain on sale of mortgage servicing rights	(4,713)	0
Gain on debt redemption	(169)	(1,027)
Change attributable to other operating activities	18,380	(949)
Net cash (used in) provided by operating activities	(78,482)	224,164
Investing Activities
Purchases of debt securities available-for-sale	(239,657)	0
Purchases of debt securities held-to-maturity	(8,857)	(8,543)
Proceeds from maturities and paydowns of debt securities available-for-sale	109,314	37,021
Proceeds from maturities and paydowns of debt securities held-to-maturity	1,918	982
Net (increase) decrease in other investments	(13,062)	583
Net increase in loans	(754,421)	(653,613)
Purchases of premises and equipment	(6,712)	(7,881)
Proceeds from sale of premises and equipment	243	19
Proceeds from sales of other real estate owned	7,240	1,955
Proceeds from sale of mortgage servicing rights	30,969	0
Proceeds from bank owned life insurance	2,576	1,890
Net cash used in investing activities	(870,449)	(627,587)
Financing Activities
Net increase in deposits	735,634	980,387
Proceeds from other borrowings	3,353,000	10,625,000
Repayment of other borrowings	(2,916,141)	(10,963,423)
Proceeds from exercise of stock options	0	476
Dividends paid - common stock	(20,821)	(20,971)
Purchase of treasury shares	(7,851)	(17,048)
Net cash provided by financing activities	1,143,821	604,421
Net increase in cash and cash equivalents	194,890	200,998
Cash and cash equivalents at beginning of period	1,167,304	1,118,132
Cash and cash equivalents at end of period	1,362,194	1,319,130
Cash paid (received) during the period for:
Interest	268,051	182,077
Income taxes	56,060	62,186
Loans transferred to other real estate owned	3,229	7,319
Loans transferred from loans held for sale to loans held for investment	8,058	5,374
Right-of-use assets obtained in exchange for new operating lease liabilities	2,376	2,022
Change in unrealized loss on securities available-for-sale, net of tax	$ (2,081)	$ (4,111)