Amount after tax, before reclassification adjustments, resulting from the process of expressing in the reporting currency of the reporting entity those amounts that are denominated or measured in a different currency, and from transactions whose terms are denominated in a currency other than the entity's functional currency.

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+ Details

Basis of Presentation (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2013 Segment	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012 Segment	Jul. 02, 2012	May 31, 2012	May 29, 2012	Jan. 05, 2011
Basis of Presentation (Textual) [Abstract]
Ownership percentage in the joint venture					30.00%	51.00%	19.00%	51.00%
Number of Operating Segments	2			2
Net foreign exchange losses resulting from foreign currency transactions included in other income		$ 11	$ 10