Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 136,221	$ 68,783
Restricted cash	24,700	32,924
Accounts receivable, net	89,302	90,673
Costs and estimated earnings in excess of billings on uncompleted contracts	17,799	17,437
Prepaid expenses and other current assets	59,641	49,716
Total current assets	327,663	259,533
Property and equipment, net	2,787,714	2,812,346
Intangible assets, net	3,387,955	3,598,131
Other assets	710,491	650,195
Total assets	7,213,823	7,320,205
Current liabilities:
Accounts payable	32,087	33,334
Accrued expenses	68,129	69,862
Current maturities of long-term debt	24,000	20,000
Deferred revenue	96,577	97,969
Accrued interest	34,186	48,899
Other current liabilities	10,533	8,841
Total current liabilities	265,512	278,905
Long-term liabilities:
Long-term debt, net	9,710,145	9,290,686
Other long-term liabilities	383,249	349,728
Total long-term liabilities	10,093,394	9,640,414
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, 114,244 and 116,446 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	1,142	1,164
Additional paid-in capital	2,233,793	2,167,470
Accumulated deficit	(4,851,501)	(4,388,288)
Accumulated other comprehensive loss, net	(528,517)	(379,460)
Total shareholders' deficit	(3,145,083)	(2,599,114)
Total liabilities and shareholders' deficit	$ 7,213,823	$ 7,320,205