Condensed Consolidated Statement Of Shareholders' Equity - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands		Total	Class A Common Stock	Class B Common Stock	Retained Deficit	Accumulated Other Comprehensive (Loss) Income	Additional Paid-In Capital	Treasury Stock	Non- controlling Interest	Regular Cash Dividend Additional Paid-In Capital
Balance at December 31, 2015, shares at Dec. 31, 2015			100,015,546	5,605
Balance at December 31, 2015 at Dec. 31, 2015		$ 3,831,722	$ 100	$ 0	$ (322,351)	$ (71,016)	$ 4,619,618	$ (400,153)	$ 5,524
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(150,470)			(150,470)
Other comprehensive income, net of taxes		4,448				4,448
Comprehensive loss		(146,022)
Regular dividends declared to shareholders and warrant holders, $0.50 per share	[1]	(46,174)								$ (46,174)
Warrant exercises, shares			132,066
Stock-based compensation		17,906					17,906
Net share settlements of stock-based awards, shares			230,644
Net share settlements of stock-based awards		(4,377)	$ 57				(4,445)	11
Common stock repurchases		(69,238)						(69,238)
Contribution from noncontrolling interest		113							113
Balance at June 30, 2016, shares at Jun. 30, 2016			100,378,256	5,605
Balance at June 30, 2016 at Jun. 30, 2016		$ 3,583,930	$ 157	$ 0	$ (472,821)	$ (66,568)	$ 4,586,905	$ (469,380)	$ 5,637

[1] Includes $0.7 million of granted dividend equivalent units.