CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net income/(loss)	$ (51,003)	$ 159,513
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Provision for credit losses	196,000	47,000
Depreciation and amortization	31,320	15,938
Net (gain)/loss on sale of loans held for sale	(26,023)	6,491
Increase in valuation allowance on mortgage servicing rights	20,818	5,772
Stock-based compensation expense	7,029	8,945
Purchases and originations of loans held for sale	(4,931,981)	(4,172,519)
Proceeds from sales and repayments of loans held for sale	7,022,960	5,045,744
Changes in operating assets and liabilities:
Accrued interest receivable and other assets	(74,155)	(190,910)
Accrued interest payable and other liabilities	57,795	99,933
Net cash provided by operating activities	2,252,760	1,025,907
Investing activities
Purchases of investment securities	(10,813)	(110,394)
Principal payments received on investment securities	5,168	1,159
Originations of mortgage finance loans	(94,837,775)	(59,008,649)
Proceeds from pay-offs of mortgage finance loans	94,034,998	57,470,810
Net increase in loans held for investment, excluding mortgage finance loans	(207,635)	(258,579)
Purchase of premises and equipment, net	(2,344)	(8,758)
Proceeds from sale of other real estate owned, net	0	79
Net cash used in investing activities	(1,018,401)	(1,914,332)
Financing activities
Net increase in deposits	3,709,102	2,392,964
Costs from issuance of stock related to stock-based awards and warrants	(1,609)	(1,212)
Preferred dividends paid	(4,875)	(4,875)
Net increase/(decrease) in other borrowings	300,000
Net increase/(decrease) in other borrowings		(800,000)
Net increase in federal funds purchased and repurchase agreements	54,024	(133,940)
Repurchase of redeemable NCI	(33,942)	0
Net cash provided by financing activities	4,056,642	1,452,937
Net increase in cash and cash equivalents	5,291,001	564,512
Cash and cash equivalents at beginning of period	4,425,583	3,080,065
Cash and cash equivalents at end of period	9,716,584	3,644,577
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	112,217	190,847
Cash paid during the period for income taxes	$ 19,835	$ 63,998