Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 54,816	$ 65,291
Restricted cash		877
Accounts receivable, net of allowance of $1,169 and $459, respectively	208,304	234,456
Prepaid expenses and other current assets	28,641	41,434
Total current assets	291,761	342,058
Property and equipment, net	2,854,109	2,883,060
Restricted cash	218	131
Investment in direct financing lease		684
Goodwill	35,001	35,557
Non-current deferred tax assets	8,949	9,824
Other assets	83,766	84,704
Total assets	3,273,804	3,356,018
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	308,576	317,675
Income taxes payable	2,421	1,920
Current portion of long-term debt	6,250	5,000
Total current liabilities	317,247	324,595
Long-term debt, net of current portion	1,400,128	1,447,077
Deferred revenue	54,641	63,289
Other liabilities	55,332	58,309
Total liabilities	$ 1,827,348	$ 1,893,270
Commitments and contingencies
Preferred stock - $0.01 par value; 50,000 shares authorized; none issued and outstanding at March 31, 2016 and December 31, 2015, respectively	$ 0	$ 0
Common stock - $0.01 par value; 300,000 shares authorized; 117,477 and 117,232 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	1,175	1,172
Additional paid-in capital	1,763,685	1,762,394
Accumulated deficit	(318,404)	(300,818)
Total stockholders' equity	1,446,456	1,462,748
Total liabilities and stockholders' equity	$ 3,273,804	$ 3,356,018