Earnings (Loss) per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings (Loss) per Share
Income (loss) from continuing operations	$ (866)	$ (219,727)	$ 604	$ (217,930)
Weighted average common shares outstanding - basic	27,941	27,600	27,791	27,423
Dilutive securities (in shares)			511
Weighted average common shares outstanding - diluted	27,941	27,600	28,302	27,423
Basic income (loss) per common share:
Continuing (in dollars per share)	$ (0.03)	$ (7.96)	$ 0.02	$ (7.95)
Discontinued (in dollars per share)				$ (0.04)
Total (in dollars per share)	$ (0.03)	$ (7.96)	$ 0.02	$ (7.99)
Diluted income (loss) per common share:
Continuing (in dollars per share)	$ (0.03)	$ (7.96)	$ 0.02	$ (7.95)
Discontinued (in dollars per share)				$ (0.04)
Total (in dollars per share)	$ (0.03)	$ (7.96)	$ 0.02	$ (7.99)
Antidilutive securities not included:
Stock options and RSUs (in shares)	1,422	2,748	2,134	2,818