Consolidated Statement Of Shareholders' Deficit - 9 months ended Sep. 30, 2016 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member] Class A Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Total
BALANCE, Amount at Dec. 31, 2015	$ 1,257	$ 1,962,713	$ (3,168,069)	$ (502,045)	$ (1,706,144)
BALANCE, Shares at Dec. 31, 2015	125,743
Net income			70,976		70,976
Common stock issued in connection with stock purchase/option plans, Amount	$ 6	11,667			11,673
Common stock issued in connection with stock purchase/option plans, Shares	564
Non-cash compensation		25,123			25,123
Repurchase and retirement of common stock, Amount	$ (20)		(202,329)		(202,349)
Repurchase and retirement of common stock, Shares	(2,010)
Foreign currency translation adjustments				131,659	131,659
BALANCE, Amount at Sep. 30, 2016	$ 1,243	$ 1,999,503	$ (3,299,422)	$ (370,386)	$ (1,669,062)
BALANCE, Shares at Sep. 30, 2016	124,297