UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating Activities
Net income	$ 77,335	$ 116,166
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	11,767	8,243
Net amortization of debt securities	6,598	7,523
Net amortization of purchase accounting adjustments and deferred loan fees and costs	(1,258)	2,154
Origination of loans held for sale	(292,073)	(200,375)
Proceeds from loans held for sale	295,111	247,440
Gain on sale of loans	(8,031)	(5,928)
(Gain) loss on sale of securities	(4)	137
Bank-owned life insurance income, net	(2,229)	(1,928)
Stock-based compensation, net of tax benefits	3,084	3,181
Depreciation and amortization of premises and equipment	14,334	13,624
Loss (gain) on sale and write-downs of other real estate owned, net	52	(56)
Amortization of core deposit intangibles	5,777	4,876
Amortization of investments in variable interest entities	13,041	10,508
Net increase in accrued interest receivable	(4,230)	(4,813)
Net increase in other assets	(2,003)	(6,059)
Net (decrease) increase in accrued interest payable	(95,509)	43,411
Net decrease in other liabilities	(15,819)	(18,577)
Net cash provided by operating activities	5,943	219,527
Investing Activities
Sales of available-for-sale debt securities	160,558	29,972
Maturities, prepayments and calls of available-for-sale debt securities	316,640	318,448
Purchases of available-for-sale debt securities	(3,164)	0
Maturities, prepayments and calls of held-to-maturity debt securities	100,011	106,040
Principal collected on loans	1,678,959	1,469,343
Loan originations	(1,910,512)	(2,248,230)
Net additions to premises and equipment	(18,143)	(20,243)
Proceeds from sale of other real estate owned	926	87
Proceeds from redemption of non-marketable equity securities	109,634	628,801
Purchases of non-marketable equity securities	(214,825)	(556,800)
Proceeds from bank-owned life insurance	193	1,787
Investments in variable interest entities	(27,909)	(12,001)
Net cash received from acquisitions	30,903	0
Net cash provided by (used in) investing activities	223,271	(282,796)
Financing Activities
Net decrease in deposits	(443,951)	(597,957)
Net increase in securities sold under agreements to repurchase	142,654	410,946
Net increase (decrease) in short-term Federal Home Loan Bank advances	491,500	(1,800,000)
Proceeds from short-term FRB Bank Term Funding advances	0	2,740,000
Repayments of short-term FRB Bank Term Funding	(2,740,000)	0
Proceeds from long-term Federal Home Loan Bank advances	1,800,000	0
Net increase (decrease) in other borrowed funds	6,220	(1,735)
Cash dividends paid	(37,745)	(36,886)
Tax withholding payments for stock-based compensation	(1,455)	(1,774)
Net cash (used in) provided by financing activities	(782,777)	712,594
Net (decrease) increase in cash, cash equivalents and restricted cash	(553,563)	649,325
Cash, cash equivalents and restricted cash at beginning of period	1,354,342	401,995
Cash, cash equivalents and restricted cash at end of period	800,779	1,051,320
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	315,786	77,670
Cash paid during the period for income taxes	13,513	15,296
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Sale and refinancing of other real estate owned	0	23
Transfer of loans to other real estate owned	104	74
Right-of-use assets obtained in exchange for new lease liabilities	280	674
Equity investments obtained in exchange for delayed equity contributions	15,148	34,712
Dividends declared during the period but not paid	37,615	36,781
Acquisitions
Fair value of common stock shares issued	92,385	0
Cash consideration	771	0
Fair value of assets acquired	777,659	0
Liabilities assumed	$ 684,503	$ 0