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Income Taxes - Continuing and Discontinuing Tax (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Entity Information [Line Items]
Continuing operations	$ 0	$ 490	$ 0	$ (118)
Discontinued operations	0	(6)	0	602
Total income tax expense		484	0	484
Partnership Interest [Member]
Entity Information [Line Items]
Continuing operations	$ 0	$ 490	$ 0	$ (118)

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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