Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 14,718	$ 8,849
Marketable securities	0	1,614
Accounts receivable, net	43,552	27,917
Prepaid expenses and other current assets	3,876	3,916
Total current assets	62,146	42,296
Property and equipment, net	214,500	111,772
Goodwill	42,403	42,403
Intangible assets, net	16,055	19,676
Other assets	5,908	2,468
Total assets	341,012	218,615
Current liabilities:
Accounts payable	29,376	4,004
Accrued expenses and other liabilities	36,328	26,109
Deferred revenue	25,759	25,488
Current portion of long-term debt	875	875
Current portion of capital leases	1,610	309
Total current liabilities	93,948	56,785
Deferred revenue, net of current portion	106,825	27,267
Long-term debt	16,750	2,625
Long-term portion of capital leases	2,217	381
Deferred tax liabilities	2,965	2,645
Other liabilities	6,272	1,482
Total liabilities	$ 228,977	$ 91,185
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock, $0.0001 par value; 5,000 shares authorized; no shares issued and outstanding
Common stock, $0.0001 par value; 100,000 shares authorized; 37,325 and 36,267 shares issued and outstanding for 2015 and 2014, respectively	$ 4	$ 4
Additional paid-in capital	197,612	189,725
Accumulated deficit	(85,176)	(62,884)
Accumulated other comprehensive loss	(1,160)	(443)
Total common stockholders' equity	111,280	126,402
Non-controlling interests	755	1,028
Total stockholders' equity	112,035	127,430
Total liabilities and stockholders' equity	$ 341,012	$ 218,615