CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating Activities
Net income	$ 44,532	$ 29,522
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for (reversal of) credit losses	9,338	(2,871)
Depreciation, amortization and accretion, net	4,606	5,026
Net change in fair value of equity securities	11
Equity in earnings of merchant banking subsidiaries	(42,705)	(2,125)
Deferred income taxes	2,400	1,871
Other, net	3,308	145
Net change in securities purchased under agreements to resell	(10,371)	(11,597)
Net change in trading securities	(96,826)	(141,709)
Net change in broker-dealer and clearing organization receivables	41,784	111,867
Net change in other assets	6,316	5,401
Net change in broker-dealer and clearing organization payables	112,058	15,861
Net change in other liabilities	(79,627)	(97,251)
Net change in securities sold, not yet purchased	5,937	25,690
Change in valuation of mortgage servicing rights asset	586	4,383
Net gains from sales of loans	(45,281)	(40,197)
Loans originated for sale	(2,105,473)	(1,951,478)
Proceeds from loans sold	2,155,244	2,118,309
Net cash provided by operating activities	5,837	70,847
Investing Activities
Proceeds from maturities and principal reductions of securities held to maturity	17,998	23,513
Proceeds from sales, maturities and principal reductions of securities available for sale	51,148	46,538
Proceeds from sales, maturities and principal reductions of equity securities		1,333
Purchases of securities held to maturity	(41,120)
Purchases of securities available for sale	(38,522)	(24,039)
Net change in loans held for investment	(63,775)	(31,472)
Purchases of premises and equipment and other assets	(797)	(2,443)
Proceeds from sales and distributions of premises and equipment and other assets	48,231	2,121
Net cash paid to Federal Home Loan Bank and Federal Reserve Bank stock	(25)	(22)
Net cash provided by (used in) investing activities	(26,862)	15,529
Financing Activities
Net change in deposits	(230,430)	(189,229)
Net change in short-term borrowings	(141,748)	(6,811)
Proceeds from long-term borrowings	260,157
Payments on long-term borrowings	(397,079)
Payments to repurchase common stock	(33,281)	(9,941)
Dividends paid on common stock	(11,649)	(11,076)
Net cash distributed to noncontrolling interest	(1,653)	(1,650)
Other, net	(2,158)	(2,981)
Net cash used in financing activities	(557,841)	(221,688)
Net change in cash, cash equivalents and restricted cash	(578,866)	(135,312)
Cash, cash equivalents and restricted cash, beginning of period	2,370,590	1,916,745
Cash, cash equivalents and restricted cash, end of period	1,791,724	1,781,433
Supplemental Disclosures of Cash Flow Information
Cash paid for interest	87,763	109,119
Cash paid (received) for income taxes, net of refunds	(623)	369
Supplemental Schedule of Non-Cash Activities
Conversion of loans to other real estate owned	4,842	2,766
Transfer of loans held for investment to loans held for sale		31,551
Additions to mortgage servicing rights	$ 1,766	$ 3,312