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Income Taxes (Details) (USD $)	3 Months Ended			9 Months Ended
Income Taxes (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Taxes (Additional Textual) [Abstract]
Effective tax rate				9.30%	(64.10%)
Income tax expense, benefit	$ 469,000	$ (18,000)		$ 650,000	$ (2,604,000)
Income tax benefit related to favorable resolution of uncertain tax positions			$ 2,600,000
Effective tax rate excluding impact from aforementioned one-time benefit				9.30%	0.10%
Maximum [Member] \| Federal and Certain State Tax Jurisdictions [Member]
Income Taxes (Textual) [Abstract]
Years subject to income tax examination				2012
Minimum [Member] \| Federal and Certain State Tax Jurisdictions [Member]
Income Taxes (Textual) [Abstract]
Years subject to income tax examination				2009

- 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.

+ References+ Details