Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating Activities
Net loss	$ (66,774)	$ (60,798)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	14,398	17,013
Stock-based compensation	17,409	19,028
Amortization of debt discount and issuance costs	709	1,087
Non-cash lease expense	3,154	4,816
Impairment costs	0	113
Net gain on IRLCs, forward sales commitments, and loans held for sale	(4,124)	(8,326)
Change in fair value of mortgage servicing rights, net	(365)	1,208
Gain on extinguishment of convertible senior notes	(5,686)	(42,270)
Other	263	(1,174)
Change in assets and liabilities:
Accounts receivable, net	(3,245)	6,738
Inventory	0	103,588
Prepaid expenses and other assets	(4,718)	1,110
Accounts payable	5,432	(1,675)
Accrued and other liabilities, deferred tax liabilities, and payroll tax liabilities, noncurrent	8,155	(16,813)
Lease liabilities	(4,089)	(4,619)
Origination of mortgage servicing rights	(61)	(347)
Proceeds from sale of mortgage servicing rights	269	339
Origination of loans held for sale	(828,421)	(854,085)
Proceeds from sale of loans originated as held for sale	821,714	861,771
Net cash (used in) provided by operating activities	(45,980)	26,704
Investing activities
Purchases of property and equipment	(3,558)	(2,919)
Purchases of investments	0	(57,556)
Sales of investments	39,225	12,014
Maturities of investments	6,395	48,483
Net cash provided by investing activities	42,062	22
Financing activities
Proceeds from the issuance of common stock pursuant to employee equity plans	94	143
Tax payments related to net share settlements on restricted stock units	(529)	(3,161)
Borrowings from warehouse credit facilities	827,186	852,988
Repayments to warehouse credit facilities	(822,562)	(858,214)
Principal payments under finance lease obligations	(27)	(40)
Repurchases of convertible senior notes	(42,525)	(108,274)
Net cash used in financing activities	(38,676)	(116,558)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(3)	(58)
Net change in cash, cash equivalents, and restricted cash	(42,597)	(89,890)
Cash, cash equivalents, and restricted cash:
Cash, cash equivalents, and restrict cash balance	108,403	152,356
Supplemental disclosure of cash flow information
Cash paid for interest	7,078	4,609
Non-cash transactions
Stock-based compensation capitalized in property and equipment	1,265	1,134
Capital expenditures	11	32
Repayment of Debt, Principal Amount	$ (313)	$ 0