Net Earnings (Loss) Per Common Share Computation of Basic and Diluted Net Earnings (Loss) Per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basic
Average common shares outstanding	32,017	31,902	32,015	31,902
Net Earnings (loss)	$ (13,612)	$ (12,461)	$ (31,588)	$ 22,720
Net earnings (loss) per common share	$ (0.43)	$ (0.39)	$ (0.99)	$ 0.71
Income (Loss) from Continuing Operations	(13,612)	(24,489)	(31,588)	(30,197)
Total Net Earnings from Discontinued Operations	0	12,028	0	52,917
Income (Loss) from Continuing Operations	$ (0.43)	$ (0.77)	$ (0.99)	$ (0.95)
Income (Loss) from Discontinued Operations	$ 0.00	$ 0.38	$ 0.00	$ 1.66
Diluted
Average common shares outstanding	32,017	31,902	32,015	31,902
Shares related to convertible debt	0	0	0	0
Stock options and awards	199	122	229	78
Average common shares assuming dilution	32,216	32,024	32,244	31,980
Net Earnings (loss)	$ (13,612)	$ (12,461)	$ (31,588)	$ 22,720
Net Earnings (loss) per Share - Assuming Dilution	$ (0.43)	$ (0.39)	$ (0.99)	$ 0.71
Income (Loss) from Continuing Operations	$ (0.43)	$ (0.77)	$ (0.99)	$ (0.95)
Income (Loss) from Discontinued Operations	$ 0.00	$ 0.38	$ 0.00	$ 1.65