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Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation of unrecognized tax benefits
Unrecognized tax benefits balance at January 1	$ 60	$ 3,126	$ 3,752
Gross increases related to prior year tax positions		1
Gross decreases related to prior year tax positions	(36)	(2,760)
Settlements	(22)	(245)	(609)
Lapse of statute of limitations	(2)	(62)	(17)
Unrecognized tax benefits balance at December 31		$ 60	$ 3,126

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

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