Condensed Consolidated Statements of Shareholders' Equity (Deficit) (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2013	$ (68,220)	$ 915	$ 739,468	$ (811,742)	$ 3,103	$ 36
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation recognized under stock compensation plans	127		127
Distributions to noncontrolling interests	(5)					(5)
Net (loss) income	763			730		33
Other comprehensive loss	(227)				(227)
Balance at Mar. 31, 2014	(67,562)	915	739,595	(811,012)	2,876	64
Balance at Dec. 31, 2014	(33,350)	915	743,919	(780,803)	2,619	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Compensation recognized under stock compensation plans	147		147
Net (loss) income	(6,971)			(6,971)		0
Other comprehensive loss	(77)				(77)
Balance at Mar. 31, 2015	$ (40,251)	$ 915	$ 744,066	$ (787,774)	$ 2,542	$ 0