Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 65,291	$ 74,393
Restricted cash	877
Accounts receivable, net of allowance of $459 and $748, respectively	234,456	248,588
Prepaid expenses and other current assets	41,434	29,775
Total current assets	342,058	352,756
Property and equipment, net	2,883,060	2,658,628
Restricted cash	131	2,858
Investment in direct financing lease	684	3,223
Goodwill	35,557	16,110
Non-current deferred tax assets	9,824	15,530
Other assets	84,704	68,541
Total assets	3,356,018	3,117,646
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	317,675	317,566
Income taxes payable	1,920	1,368
Current portion of long-term debt	5,000
Current liabilities of discontinued operations		54
Total current liabilities	324,595	318,988
Long-term debt, net of current portion	1,447,077	1,190,455
Deferred revenue	63,289	87,227
Other liabilities	58,309	39,476
Total liabilities	$ 1,893,270	$ 1,636,146
Commitments and contingencies
Preferred stock - $0.01 par value; 50,000 shares authorized; none issued and outstanding at December 31, 2015 and 2014, respectively	$ 0	$ 0
Common stock - $0.01 par value; 300,000 shares authorized; 117,232 and 116,764 shares issued and outstanding at December 31, 2015 and 2014, respectively	1,172	1,168
Additional paid-in capital	1,762,394	1,748,303
Accumulated deficit	(300,818)	(267,971)
Total stockholders' equity	1,462,748	1,481,500
Total liabilities and stockholders' equity	$ 3,356,018	$ 3,117,646