Consolidated Statement Of Shareholders' Deficit - 6 months ended Jun. 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			86,348		86,348
Common stock issued in connection with stock purchase/option plans, Amount	$ 4	8,134			8,138
Common stock issued in connection with stock purchase/option plans, Shares	352
Non-cash compensation		16,926			16,926
Repurchase and retirement of common stock, Amount	$ (15)		(150,014)		(150,029)
Repurchase and retirement of common stock, Shares	(1,529)
Foreign currency translation adjustments				137,184	137,184
BALANCE, Amount at Jun. 30, 2016	$ 1,246	$ 1,987,773	$ (3,231,735)	$ (364,861)	$ (1,607,577)
BALANCE, Shares at Jun. 30, 2016	124,566