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Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012	Oct. 02, 2011
Consolidated Statements of Comprehensive Income [Abstract]
Net (loss) income	$ (5,739)	$ 6,082	$ 3,987	$ 6,584
Other comprehensive income (loss):
Foreign currency translation adjustments	1,904	(6,171)	2,551	(3,865)
Reclassification adjustment for net gain on marketable securities included in net income	(1,236)	0	(1,685)	0
Unrealized gain on marketable securities	0	1,448	0	1,448
Other comprehensive income (loss), net of tax	668	(4,723)	866	(2,417)
Total comprehensive (loss) income	$ (5,071)	$ 1,359	$ 4,853	$ 4,167

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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