CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 1,463,573	$ 1,056,213
Restricted cash	37,116	33,826
Accounts receivable, net of allowance of $3,304 and $2,803, respectively	100,491	60,576
Inventory	519,966	423,647
Prepaid expenses and other current assets	49,984	23,617
Total current assets	2,171,130	1,597,879
Property and equipment, net	21,397	15,092
Intangible assets, net	31,318	34
Goodwill	159,306	78,172
Operating lease right-of-use assets	17,679	17,137
Other assets	19,809	15,742
Total assets	2,420,639	1,724,056
Current Liabilities:
Accounts payable	69,813	32,925
Accrued expenses	86,328	59,405
Vehicle floorplan	363,614	329,231
Deferred revenue	41,648	24,822
Operating lease liabilities, current	6,612	6,052
Other current liabilities	90,986	30,275
Total current liabilities	659,001	482,710
Convertible senior notes	608,960
Operating lease liabilities, excluding current portion	12,348	12,093
Other long-term liabilities	3,584	2,151
Total liabilities	1,283,893	496,954
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock, $0.001 par value; 500,000,000 shares authorized as of June 30, 2021 and December 31, 2020; 136,717,347 and 134,043,969 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively	134	132
Additional paid-in-capital	2,057,479	2,004,841
Accumulated deficit	(920,867)	(777,871)
Total stockholders’ equity	1,136,746	1,227,102
Total liabilities and stockholders’ equity	$ 2,420,639	$ 1,724,056