Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 182,338	$ 115,061
Trust and restricted cash	19,829	18,573
Accounts receivable, net of allowance of $7,270 and $7,544	373,087	355,625
Income taxes receivable	19,332
Prepaid assets	43,093	45,242
Deferred expenses	65,781	65,317
Other current assets	22,040	30,575
Assets held for sale	17,672	304,605
Total current assets	743,172	934,998
PROPERTY AND EQUIPMENT:
Property and equipment	1,053,678	1,045,769
Accumulated depreciation and amortization	(718,834)	(695,739)
Total property and equipment, net	334,844	350,030
GOODWILL	1,915,690	1,884,920
INTANGIBLE ASSETS, net of accumulated amortization of $583,623 and $527,153	370,021	388,166
OTHER ASSETS	248,552	259,961
TOTAL ASSETS	3,612,279	3,818,075
CURRENT LIABILITIES:
Accounts payable	92,935	91,353
Deferred revenue	161,828	144,413
Accrued expenses	220,926	228,424
Current maturities of long-term debt	24,375	16,246
Liabilities held for sale		84,788
Total current liabilities	500,064	565,224
LONG-TERM OBLIGATIONS, less current maturities	3,375,750	3,642,540
DEFERRED INCOME TAXES	102,530	96,632
OTHER LONG-TERM LIABILITIES	186,073	173,320
Total liabilities	$ 4,164,417	$ 4,477,716
COMMITMENTS AND CONTINGENCIES (Note 16)
STOCKHOLDERS' DEFICIT
Common Stock $0.001 par value, 475,000 shares authorized, 85,459 and 84,272 shares issued and 83,367 and 84,180 shares outstanding	$ 85	$ 84
Additional paid-in capital	2,193,193	2,155,864
Retained deficit	(2,607,415)	(2,772,775)
Accumulated other comprehensive loss	(72,736)	(37,506)
Treasury stock at cost (2,092 and 92 shares)	(65,265)	(5,308)
Total stockholders' deficit	(552,138)	(659,641)
TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIT	$ 3,612,279	$ 3,818,075