Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 325,352	$ 234,679
Restricted cash	35,102	12,769
Short-term investments	128,056	70,029
Accounts receivable, net	34,182	19,223
Inventory	9,437	74,590
Loans held for sale	42,439	21,985
Prepaid expenses	7,624	14,822
Other current assets	4,555	3,496
Total current assets	586,747	451,593
Property and equipment, net	41,414	39,577
Right-of-use assets, net	47,697	52,004
Long-term investments	18,792	30,978
Goodwill and intangibles, net	11,260	11,504
Other non-current assets	9,430	10,557
Total assets	715,340	596,213
Current liabilities
Accounts payable	3,389	2,122
Accrued liabilities	48,967	38,022
Other payables	27,614	7,884
Warehouse credit facilities	40,566	21,302
Secured revolving credit facility	7,215	4,444
Current lease liabilities	11,614	11,408
Total current liabilities	139,365	85,182
Non-current lease liabilities	54,362	59,869
Convertible senior notes, net	122,884	119,716
Non-current payroll tax liabilities	3,668	0
Total liabilities	320,279	264,767
Commitments and contingencies (Note 7)
Series A convertible preferred stock—par value $0.001 per share; 10,000,000 shares authorized; 40,000 and no shares issued and outstanding, respectively	39,801	0
Stockholders’ equity
Common stock—par value $0.001 per share; 500,000,000 shares authorized; 99,394,432 and 93,001,597 shares issued and outstanding, respectively	99	93
Additional paid-in capital	673,234	583,097
Accumulated other comprehensive income	441	42
Accumulated deficit	(318,514)	(251,786)
Total stockholders’ equity	355,260	331,446
Total liabilities, mezzanine equity and stockholders’ equity	$ 715,340	$ 596,213