CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (AOCI)	Non-controlling Interest
Beginning balance at Dec. 31, 2013	$ 473,678	$ 43	$ (40,998)	$ 3,536,761	$ (3,045,685)	$ 40	$ 23,517
Beginning balance (in shares) at Dec. 31, 2013		43,333	(5,118)
Equity-based compensation expense related to stock appreciation rights (SARs) and stock options	250			250
Equity-based compensation related to deferred stock units (DSUs)	146			146
Equity-based compensation related to restricted stock (RS)	3,293			3,293
Issuance of DSUs	100			100
Issuance of DSUs, shares		29
Issuance of RS, net of forfeitures and surrenders	(934)	3		(937)
Issuance of RS, net of forfeitures and surrenders, shares		2,683
Exercise of SARs and stock options, net of surrenders	(1,270)			(1,270)
Exercise of SARs and stock options, net of surrenders, shares		120
Impact of redeemable noncontrolling interest accretion	(594)			(594)
Impact of subsidiary equity transactions	(132)			159			(291)
Net income (loss)	(11,065)				(10,150)		(915)
Ending balance at Mar. 31, 2014	463,472	46	(40,998)	3,537,908	(3,055,835)	40	22,311
Ending balance (in shares) at Mar. 31, 2014		46,165	(5,118)
Beginning balance at Dec. 31, 2014	452,881	46	(53,807)	3,554,900	(3,069,241)	40	20,943
Beginning balance (in shares) at Dec. 31, 2014		46,405	(5,892)
Equity-based compensation expense related to stock appreciation rights (SARs) and stock options	147			147
Equity-based compensation related to deferred stock units (DSUs)	17			17
Equity-based compensation related to restricted stock (RS)	6,655			6,655
Issuance of DSUs	82			82
Issuance of DSUs, shares		5
Issuance of RS, net of forfeitures and surrenders	(3,480)			(3,480)
Issuance of RS, net of forfeitures and surrenders, shares		198
Exercise of SARs and stock options, net of surrenders	(9)			(9)
Exercise of SARs and stock options, net of surrenders, shares		2
Impact of redeemable noncontrolling interest accretion	(1,303)			(1,303)
Impact of subsidiary equity transactions	626			618			8
Repurchase of common stock	(1,702)		(1,702)
Repurchase of common stock, shares			(96)
Net income (loss)	(15,857)				(14,765)		(1,092)
Ending balance at Mar. 31, 2015	$ 438,057	$ 46	$ (55,509)	$ 3,557,627	$ (3,084,006)	$ 40	$ 19,859
Ending balance (in shares) at Mar. 31, 2015		46,610	(5,988)