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		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Basic
Average common shares outstanding	31,902	31,877	31,902	31,838
Net Earnings (loss)	$ 16,102	$ 2,864	$ 38,821	$ 9,120
Net earnings (loss) per common share	$ 0.50	$ 0.09	$ 1.21	$ 0.28
Income (Loss) from Continuing Operations Attributable to Parent	(5,383)	563	(35,580)	374
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	21,485	2,301	74,401	8,746
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.17)	$ 0.02	$ (1.12)	$ 0.01
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	$ 0.67	$ 0.07	$ 2.33	$ 0.27
Diluted
Average common shares outstanding	31,902	31,877	31,902	31,838
Shares related to convertible debt	0	0	0	0
Stock options and awards	164	24	107	9
Average common shares assuming dilution	32,066	31,901	32,009	31,847
Net Earnings (loss)	$ 16,102	$ 2,864	$ 38,821	$ 9,120
Net Earnings (loss) per Share - Assuming Dilution	$ 0.50	$ 0.09	$ 1.20	$ 0.28
Income (Loss) from Continuing Operations, Per Diluted Share	$ (0.17)	$ 0.02	$ (1.12)	$ 0.01
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share	$ 0.67	$ 0.07	$ 2.32	$ 0.27