Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 68,783	$ 146,109
Restricted cash	32,924	36,786
Accounts receivable, net	90,673	78,344
Costs and estimated earnings in excess of billings on uncompleted contracts	17,437	11,127
Prepaid expenses and other current assets	49,716	52,205
Total current assets	259,533	324,571
Property and equipment, net	2,812,346	2,792,076
Intangible assets, net	3,598,131	3,656,924
Other assets	650,195	587,374
Total assets	7,320,205	7,360,945
Current liabilities:
Accounts payable	33,334	28,320
Accrued expenses	69,862	61,129
Current maturities of long-term debt	20,000	627,157
Deferred revenue	97,969	101,098
Accrued interest	48,899	44,503
Other current liabilities	8,841	11,240
Total current liabilities	278,905	873,447
Long-term liabilities:
Long-term debt, net	9,290,686	8,148,426
Other long-term liabilities	349,728	334,993
Total long-term liabilities	9,640,414	8,483,419
Shareholders' deficit:
Preferred stock - par value $.01, 30,000 shares authorized, no shares issued or outstanding
Common stock - Class A, par value $.01, 400,000 shares authorized, 116,446 and 121,004 shares issued and outstanding at December 31, 2017 and December 31, 2016, respectively	1,164	1,210
Additional paid-in capital	2,167,470	2,010,520
Accumulated deficit	(4,388,288)	(3,637,467)
Accumulated other comprehensive loss, net	(379,460)	(370,184)
Total shareholders' deficit	(2,599,114)	(1,995,921)
Total liabilities and shareholders' deficit	$ 7,320,205	$ 7,360,945