Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 114,518	$ 107,721
Accounts receivable, net of allowances of $2,614 and $2,600 at March 31, 2017 and December 31, 2016, respectively (includes related party receivables of $249 and $393 at March 31, 2017 and December 31, 2016, respectively)	35,862	36,867
Prepaid expenses	7,200	6,044
Other current assets	8,946	2,278
Total current assets	166,526	152,910
Property and equipment, net	68,542	66,941
Goodwill	53,270	53,270
Intangible assets, net	18,809	19,774
Other assets	1,679	1,553
Total assets	308,826	294,448
Current liabilities
Accounts payable (includes related party payables of $1,345 and $2,925 at March 31, 2017 and December 31, 2016, respectively)	10,617	13,827
Accrued employee expenses	17,379	8,951
Accrued expenses and other current liabilities (includes related party accrued expenses of $2,899 and $992 at March 31, 2017 and December 31, 2016, respectively)	14,762	12,583
Total current liabilities	42,758	35,361
Deferred tax liabilities	3,101	2,994
Lease financing obligations, net of current portion	28,995	28,833
Other liabilities	2,405	2,679
Total liabilities	77,259	69,867
Commitments and contingencies (Note 6)
Stockholders’ Equity
Preferred stock — $0.0001 par value; 20,000,000 shares authorized at March 31, 2017 and December 31, 2016, respectively; no shares issued and outstanding at March 31, 2017 and December 31, 2016	0	0
Common stock — $0.0001 par value; 1,000,000,000 shares authorized at March 31, 2017 and December 31, 2016; 89,098,426 and 86,159,527 shares issued and outstanding at March 31, 2017 and December 31, 2016, respectively	9	9
Additional paid-in capital	556,588	542,807
Accumulated deficit	(325,030)	(318,235)
Total stockholders’ equity	231,567	224,581
Total liabilities and stockholders’ equity	$ 308,826	$ 294,448