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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Taxes [Abstract]
Income tax expense (benefit)	$ 102	$ (1,096)	$ (779)	$ 32,411
Income tax rate, percentage	21.10%	38.90%	31.50%	38.60%
Unrecognized tax benefits	424		424		424
Unrecognized tax benefits, if recognized, that would affect the effective income tax rates of future periods	$ 424		$ 424

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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