Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Operating Activities
Net income	$ 303,798	$ 264,309
Adjustments reconciling net income to net cash provided by operating activities:
Depreciation, amortization and accretion, net	23,345	27,686
Net (gains) losses on sale or disposal of premises and equipment	(53)	31
Provision for credit losses	47,294	45,985
Net write-downs and (gains) losses on sale of other real estate owned	119	(20)
Share-based compensation expense	9,683	9,329
Amortization of operating lease right of use assets	6,775	7,588
Provision for deferred taxes	(8,903)	(23,459)
Net (gain) loss on securities	(1,621)	(12,320)
Originations of mortgage loans held for sale	(3,113,852)	(3,237,612)
Payments received on mortgage loans held for sale	23,373	12,720
Proceeds from sales of mortgage loans held for sale	3,057,385	2,980,551
Net gains on mortgage loans held for sale	(36,194)	(43,062)
Originations of SBA loans held for sale	(28,627)	(5,823)
Proceeds from sales of SBA loans held for sale	25,680	5,690
Net gains on sale of SBA loans held for sale	(1,790)	(468)
Increase in cash surrender value of bank owned life insurance	(10,193)	(8,516)
Gain on bank owned life insurance proceeds	(401)	(1,464)
Gain on sale of mortgage servicing rights	(467)	(9,958)
Gain on debt redemption	(572)	(169)
Change attributable to other operating activities	(11,635)	12,672
Net cash provided by operating activities	283,144	23,690
Investing Activities
Purchases of debt securities available-for-sale	(811,625)	(423,932)
Purchases of debt securities held-to-maturity	(41,048)	(22,206)
Proceeds from maturities and paydowns of debt securities available-for-sale	378,182	413,553
Proceeds from sales of debt securities available-for-sale	45,039	0
Proceeds from maturities and paydowns of debt securities held-to-maturity	3,318	2,628
Net (increase) decrease in other investments	(4,172)	19,390
Net increase in loans	(570,728)	(815,879)
Purchases of premises and equipment	(14,735)	(9,120)
Proceeds from sale of premises and equipment	172	250
Proceeds from sales of other real estate owned	6,822	7,503
Proceeds from sale of mortgage servicing rights	23,728	82,328
Purchases of bank owned life insurance	0	(110,000)
Proceeds from bank owned life insurance	56,899	55,059
Net cash used in investing activities	(928,148)	(800,426)
Financing Activities
Net increase in deposits	505,630	1,170,756
Proceeds from other borrowings	5,145,000	4,443,000
Repayment of other borrowings	(5,099,179)	(4,606,177)
Dividends paid - common stock	(41,580)	(31,140)
Purchase of treasury shares	(42,080)	(7,851)
Net cash provided by financing activities	467,791	968,588
Net (decrease) increase in cash and cash equivalents	(177,213)	191,852
Cash and cash equivalents at beginning of period	1,220,377	1,167,304
Cash and cash equivalents at end of period	1,043,164	1,359,156
Cash paid during the period for:
Interest	347,014	408,323
Income taxes	120,410	97,574
Loans transferred to other real estate owned	7,645	10,766
Loans transferred from loans held for sale to loans held for investment	13,897	15,957
Loans transferred from loans held for investment to loans held for sale	15,409	0
Right-of-use assets obtained in exchange for new operating lease liabilities	3,398	2,470
Security purchases settled in a subsequent period	$ 19,805	$ 0