Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Unrecognized Tax Benefits
Unrecognized Tax Benefits, Beginning Balance	$ 309	$ 125	$ 185
Decreases for settlements			(60)
Increases for positions taken in prior years	3,571	10
Decreases for positions taken in prior years	(184)
Increases for positions taken in the current year	1,549	174
Unrecognized Tax Benefits, Ending Balance	$ 5,245	$ 309	$ 125

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6527854

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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