Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 21,634	$ 19,485
Accounts receivable, net	39,102	42,978
Prepaid expenses and other current assets	6,722	5,344
Total current assets	67,458	67,807
Property and equipment, net	261,010	250,765
Goodwill	42,403	42,403
Intangible assets, net	11,094	13,783
Other assets	6,580	6,223
Total assets	388,545	380,981
Current liabilities:
Accounts payable	14,614	15,516
Accrued expenses and other liabilities	35,660	27,723
Deferred revenue	78,575	50,869
Current portion of long-term debt	875	1,094
Current portion of capital leases and notes payable	4,349	3,993
Total current liabilities	134,073	99,195
Deferred revenue, net of current portion	138,910	152,719
Long-term debt	5,219	15,875
Long-term portion of capital leases and notes payable	3,560	4,612
Deferred tax liabilities	3,513	3,208
Other liabilities	6,500	6,826
Total liabilities	291,775	282,435
Commitments and contingencies (Note 8)
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; 40,788 and 38,562 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively	4	4
Additional paid-in capital	227,454	211,275
Accumulated deficit	(130,948)	(112,601)
Accumulated other comprehensive loss	(812)	(870)
Total common stockholders' equity	95,698	97,808
Non-controlling interests	1,072	738
Total stockholders' equity	96,770	98,546
Total liabilities and stockholders' equity	$ 388,545	$ 380,981