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Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Consolidated Statements of Comprehensive Income [Abstract]
Net income (loss)	$ 4,438	$ (1,550)	$ 9,726	$ 502
Other comprehensive income (loss):
Foreign currency translation adjustments	(1,690)	732	647	2,306
Reclassification adjustment for net gain on marketable securities included in net income	(662)	0	(515)	0
Unrealized (loss) gain on marketable securities	(269)	0	66	0
Other comprehensive (loss) income, net of tax	(2,621)	732	198	2,306
Total comprehensive income (loss)	$ 1,817	$ (818)	$ 9,924	$ 2,808

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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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