CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Total	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interest [Member]	Preferred Class A [Member] Series A Convertible Preferred Stock [Member]	Common Class A [Member] Common Stock [Member]	Common Class B [Member]	Common Class B [Member] Common Stock [Member]
BALANCE at Dec. 31, 2015	$ 78,641	$ 1,914,050	$ (1,605,245)	$ (242,409)	$ 1,381	$ 0	$ 10,864		$ 0
BALANCE (in shares) at Dec. 31, 2015						1
BALANCE (in shares) at Dec. 31, 2015							135,804,221	0	0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	838	838
Shares issuance, stock-based compensation (in shares)							95,557
Shares issuance, stock-based compensation	0						$ 8
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options		(8)
Preferred dividend paid-in-kind	(4,510)	(4,510)
Net loss	(40,694)		(40,435)		(259)
Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion	(1,248)			(1,248)
Currency translation adjustment	19,058			19,372
BALANCE at Mar. 31, 2016	52,085	$ 1,910,370	$ (1,645,680)	$ (224,285)	808	$ 0	$ 10,872		$ 0
BALANCE (in shares) at Mar. 31, 2016						1
BALANCE (in shares) at Mar. 31, 2016							135,899,778	0	0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	$ 19,058				$ (314)