Earnings per Share Earnings per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Loss per Share [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 8,314	$ (4,718)	$ 8,332	$ (30,901)
Interest on Convertible Debt, Net of Tax	128	0	0	0
Net Income (Loss) Available to Common Stockholders, Diluted	$ 8,442	$ (4,718)	$ 8,332	$ (30,901)
Weighted Average Number of Shares Outstanding, Basic	19,434	18,728	19,014	18,685
Incremental Common Shares Attributable to Stock Options	187	0	92	0
Incremental Common Shares Attributable to Deferred Compensation	127	0	132	0
Incremental Common Shares Attributable to Conversion of Debt Securities	525	0	0	0
Weighted Average Number of Shares Outstanding, Diluted	20,273	18,728	19,238	18,685
Earnings Per Share, Basic	$ 0.43	$ (0.25)	$ 0.44	$ (1.65)
Earnings Per Share, Diluted	$ 0.42	$ (0.25)	$ 0.43	$ (1.65)
Anti-dilutive stock equivalent awards not included in the calculation of diluted loss per share	695	2,167	1,003	2,186