CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Preferred Stock [Member] Preferred Stock [Member]	Common Class A [Member]	Common Class A [Member] Common Stock [Member]	Common Class B [Member]	Common Class B [Member] Common Stock [Member]
BALANCE at Dec. 31, 2012	$ 631,267	$ 1,556,250	$ (982,513)	$ 46,150	$ 5,206	$ 0		$ 6,174		$ 0
BALANCE (in shares) at Dec. 31, 2012						1
BALANCE (in shares) at Dec. 31, 2012								77,185,129		0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	6,116	6,116
Share issuances	151,653	147,082						$ 4,571
Share issuances (in shares)								57,132,931
Acquisition of noncontrolling interest		2,752	(2,752)
Preferred dividend paid in kind	(7,890)	(7,890)
Share issuance, stock-based compensation		(42)						$ 42
Share issuance, stock-based compensation (in shares)								519,382
Acquisition of noncontrolling interests		(261)			261
Other	59	59
Dividends	(471)				(471)
Net loss	(281,533)		(277,651)		(3,882)
Unrealized loss on derivative instruments (Note 14)	0
Currency translation adjustment	(58,200)			(57,979)	(221)
BALANCE at Dec. 31, 2013	441,001	1,704,066	(1,262,916)	(11,829)	893	$ 0		$ 10,787		$ 0
BALANCE (in shares) at Dec. 31, 2013						1
BALANCE (in shares) at Dec. 31, 2013								134,837,442		0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	1,344	1,344
Adjustments to Additional Paid in Capital, Warrant Issued	239,586	239,586
Preferred dividend paid in kind	(16,036)	(16,036)
Share issuance, stock-based compensation		(40)						$ 40
Share issuance, stock-based compensation (in shares)								497,816
Net loss	(231,896)		(227,428)		(4,468)
Unrealized loss on derivative instruments (Note 14)	(581)			(581)
Currency translation adjustment	(156,236)			(157,199)	963
BALANCE at Dec. 31, 2014	277,182	1,928,920	(1,490,344)	(169,609)	(2,612)	$ 0		$ 10,827		$ 0
BALANCE (in shares) at Dec. 31, 2014						1
BALANCE (in shares) at Dec. 31, 2014							135,300,000	135,335,258	0	0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	2,439	2,439
Preferred dividend paid in kind	(17,272)	(17,272)
Share issuance, stock-based compensation		(37)						$ 37
Share issuance, stock-based compensation (in shares)								468,963
Net loss	(115,572)		(114,901)		(671)
Unrealized loss on derivative instruments (Note 14)	(839)			(839)
Currency translation adjustment	(89,714)			(91,097)	1,383
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Tax	22,417			19,136	3,281
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							135,800,000	135,804,221	0	0