Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 181,722	$ 107,721
Accounts receivable, net of allowances of $2,761 and $2,600 at June 30, 2017 and December 31, 2016, respectively (includes related party receivables of $240 and $393 at June 30, 2017 and December 31, 2016, respectively)	37,056	36,867
Prepaid expenses	7,050	6,044
Other current assets	1,043	2,278
Total current assets	226,871	152,910
Property and equipment, net	68,397	66,941
Goodwill	53,270	53,270
Intangible assets, net	17,843	19,774
Other assets	1,659	1,553
Total assets	368,040	294,448
Current liabilities
Accounts payable (includes related party payables of $4,002 and $2,925 at June 30, 2017 and December 31, 2016, respectively)	18,018	13,827
Accrued employee expenses	7,399	8,951
Accrued expenses and other current liabilities (includes related party accrued expenses of $660 and $992 at June 30, 2017 and December 31, 2016, respectively)	11,994	12,583
Total current liabilities	37,411	35,361
Deferred tax liabilities	3,282	2,994
Lease financing obligations, net of current portion	29,031	28,833
Other liabilities	3,782	2,679
Total liabilities	73,506	69,867
Commitments and contingencies (Note 6)
Stockholders’ Equity
Preferred stock — $0.0001 par value; 20,000,000 shares authorized at June 30, 2017 and December 31, 2016, respectively; no shares issued and outstanding at June 30, 2017 and December 31, 2016	0	0
Common stock — $0.0001 par value; 1,000,000,000 shares authorized at June 30, 2017 and December 31, 2016; 97,575,225 and 86,159,527 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively	10	9
Additional paid-in capital	627,614	542,807
Accumulated deficit	(333,090)	(318,235)
Total stockholders’ equity	294,534	224,581
Total liabilities and stockholders’ equity	$ 368,040	$ 294,448