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Income Taxes (Details 6) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of unrecognized tax benefits
Beginning balance	$ 9,597	$ 14,745	$ 15,614
Additions based on tax positions related to current year	365	289
Additions based on tax positions related to prior years	1,710	1,579
Reductions based on settlement with government authority		(5,753)
Reductions based on lapse of statute of limitations	(97)	(1,263)	(167)
Reductions based on tax positions related to prior years	(316)		(702)
Ending balance	$ 11,259	$ 9,597	$ 14,745

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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