Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 109,350	$ 68,783
Restricted cash	28,372	32,924
Accounts receivable, net	101,103	90,673
Costs and estimated earnings in excess of billings on uncompleted contracts	13,039	17,437
Prepaid and other current assets	50,916	49,716
Total current assets	302,780	259,533
Property and equipment, net	2,803,478	2,812,346
Intangible assets, net	3,600,640	3,598,131
Other assets	698,184	650,195
Total assets	7,405,082	7,320,205
Current liabilities:
Accounts payable	29,554	33,334
Accrued expenses	60,223	69,862
Current maturities of long-term debt	20,000	20,000
Deferred revenue	93,407	97,969
Accrued interest	33,862	48,899
Other current liabilities	13,882	8,841
Total current liabilities	250,928	278,905
Long-term liabilities:
Long-term debt, net	9,363,686	9,290,686
Other long-term liabilities	378,709	349,728
Total long-term liabilities	9,742,395	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, 116,472 and 116,446 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	1,165	1,164
Additional paid-in capital	2,184,989	2,167,470
Accumulated deficit	(4,395,286)	(4,388,288)
Accumulated other comprehensive loss, net	(379,109)	(379,460)
Total shareholders' deficit	(2,588,241)	(2,599,114)
Total liabilities and shareholders' deficit	$ 7,405,082	$ 7,320,205