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Income Taxes and Distributions (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Valuation Allowance
Additions	$ 9,234	$ 0	$ 317
Deductions	0	(4,732)	0
Valuation allowance	$ 12,199	$ 2,965	$ 7,697	$ 7,380

The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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