CONSOLIDATED AND CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 1,295,385	$ 849,461
Short-term investments	6,049	114,278
Accounts receivable, net of allowance of $17,849 and $9,312 at September 30, 2019 and December 31, 2018, respectively	75,677	50,603
Inventories	68,622	46,164
Prepaid expenses and other current assets	224,968	195,430
Total current assets	1,670,701	1,255,936
Operating lease right-of-use assets	756,716
Property and equipment, net	547,056	606,977
Goodwill and intangible assets, net	19,211	2,585
Long-term investments	0	6,526
Other noncurrent assets	13,951	18,826
Total assets	3,007,635	1,890,850
Current liabilities
Accounts payable	814,439	650,174
Accrued expenses	267,351	212,997
Unearned revenue	151,367	148,057
Other current liabilities	200,502	127,995
Total current liabilities	1,433,659	1,139,223
Lease financing obligation, net of current portion	0	183,056
Operating lease liabilities	813,861
Long-term debt	1,435,927	738,904
Other liabilities	6,617	160,388
Total liabilities	3,690,064	2,221,571
Commitments and contingencies (Note 7)
Convertible preferred stock, $0.001 par value per share: 10,000,000 shares authorized and none issued at September 30, 2019 and December 31, 2018	0	0
Stockholders’ deficit:
Additional paid-in capital	1,054,135	753,657
Accumulated deficit	(1,735,201)	(1,082,689)
Accumulated other comprehensive (loss)	(1,456)	(1,780)
Total stockholders’ deficit	(682,429)	(330,721)
Total liabilities and stockholders’ deficit	3,007,635	1,890,850
Class A common stock
Stockholders’ deficit:
Common stock	66	63
Class B common stock
Stockholders’ deficit:
Common stock	$ 27	$ 28