Condensed Consolidated Statements of Cash Flows $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)
Cash flows from operating activities:
Goodwill impairment	$ 1,376,736	$ 0
Net (loss) earnings	(1,392,838)	242,488
Depreciation and amortization	27,622	26,946
Amortization of net premiums on investment securities	19,281	29,742
Amortization of intangible assets	4,800	7,298
Amortization of operating lease ROU assets	14,580	15,100
Provision for credit losses	5,000	11,500
Gain on sale of foreclosed assets	(210)	(3,170)
Provision for losses on foreclosed assets	685	0
Loss (gain) on sale of loans and leases	155,919	(72)
Gain on sale of premises and equipment	(5)	(5)
Loss on sale of securities	0	1,105
Gain on BOLI death benefit	(416)	0
Unrealized gain on derivatives, foreign currencies, and credit-linked notes, net	(1,682)	(1,330)
LOCOM HFS Adjustment	11,943	0
Earned stock compensation	13,917	17,255
Business Combination, Integration Related Costs	70	0
Increase in other assets	(181,990)	(24,626)
Increase (decrease) in accrued interest payable and other liabilities	30,548	(50,662)
Net cash provided by operating activities	83,960	271,569
Cash flows from investing activities:
Net decrease (increase) in loans and leases	437,585	(3,600,769)
Proceeds from sales of loans and leases	5,283,557	41,089
Proceeds from maturities and paydowns of securities available-for-sale	131,475	417,760
Proceeds from sales of securities available-for-sale	0	598,415
Purchases of securities available-for-sale	(5,836)	(374,921)
Proceeds from maturities and paydowns of securities held-to-maturity	568	82
Net redemptions (purchases) of Federal Home Loan Bank stock	17,040	(15,960)
Proceeds from sales of foreclosed assets	5,346	16,317
Purchases of premises and equipment, net	(9,245)	(10,423)
Proceeds from sales of premises and equipment	13	9
Proceeds from BOLI death benefit	3,567	555
Net decrease (increase) in equipment leased to others under operating leases	5,770	(3,196)
Net cash provided by (used in) investing activities	5,869,840	(2,931,042)
Cash flows from financing activities:
Net decrease in noninterest-bearing deposits	(5,156,999)	(1,205,104)
Net (decrease) increase in interest-bearing deposits	(882,252)	175,499
Proceeds from (Repayments of) Debt	4,598,891	1,592,000
Net proceeds from preferred stock offering	0	498,516
Restricted stock surrendered	(5,072)	(8,770)
Preferred stock dividends paid	(19,894)	0
Common stock dividends paid	(30,549)	(59,998)
Net cash (used in) provided by financing activities	(1,495,875)	992,143
Net increase (decrease) in cash, cash equivalents, and restricted cash	4,457,925	(1,667,330)
Cash, cash equivalents, and restricted cash, beginning of period	2,240,222	4,057,234
Cash, cash equivalents, and restricted cash, end of period	6,698,147	2,389,904
Supplemental disclosures of cash flow information:
Cash paid for interest	467,830	38,596
Cash paid for income taxes	1,143	76,037
Loans transferred to foreclosed assets	9,225	304
Transfer of Portfolio Loans and Leases to Held-for-sale	3,076,427	0
Loan, Transfer from Held-for-Sale to Held-in-Portfolio	370,375	0
Liabilities	35,804,055
Transfer of securities available-for-sale to held-to-maturity	$ 0	$ 2,260,407