Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 107,721	$ 112,371
Accounts receivable, net of allowances of $2,600 and $2,720 at December 31, 2016 and 2015, respectively (includes related party receivables of $393 and $328 at December 31, 2016 and 2015, respectively)	36,867	33,761
Prepaid expenses	6,044	6,048
Other current assets	2,278	779
Total current assets	152,910	152,959
Property and equipment, net	66,941	71,390
Goodwill	53,270	53,270
Intangible assets, net	19,774	23,815
Other assets	1,553	940
Total assets	294,448	302,374
Current liabilities
Accounts payable (includes related party payables of $2,925 and $7,490 at December 31, 2016 and 2015, respectively)	13,827	18,880
Accrued employee expenses	8,951	7,799
Accrued expenses and other current liabilities (includes related party accrued expenses of $992 and $318 at December 31, 2016 and 2015, respectively)	12,583	12,425
Total current liabilities	35,361	39,104
Deferred tax liabilities	2,994	2,413
Lease financing obligation, net of current portion	28,833	26,987
Other liabilities	2,679	1,178
Total liabilities	69,867	69,682
Commitments and contingencies
Stockholders’ Equity
Preferred stock — $0.0001 par value; 20,000,000 shares authorized at December 31, 2016 and 2015, respectively; no shares issued and outstanding at December 31, 2016 and 2015	0	0
Common stock — $0.0001 par value; 1,000,000,000 shares authorized at December 31, 2016 and 2015, respectively; 86,159,527 and 83,016,735 shares issued and outstanding at December 31, 2016 and 2015, respectively	9	8
Additional paid-in capital	542,807	508,584
Accumulated deficit	(318,235)	(275,900)
Total stockholders’ equity	224,581	232,692
Total liabilities and stockholders’ equity	$ 294,448	$ 302,374