Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Net Earnings	$ 14,637us-gaap_NetIncomeLoss	$ 13,521us-gaap_NetIncomeLoss	$ 25,893us-gaap_NetIncomeLoss	$ 25,947us-gaap_NetIncomeLoss
Foreign currency translation adjustments	(914)	(172)	(2,869)	(276)
Unrealized holding gain(loss)on marketable securities	533	956	(1,389)	1,429
Total Other Comprehensive Income, net of tax	(381)	784	(4,258)	1,153
Comprehensive Income	$ 14,256us-gaap_ComprehensiveIncomeNetOfTax	$ 14,305us-gaap_ComprehensiveIncomeNetOfTax	$ 21,635us-gaap_ComprehensiveIncomeNetOfTax	$ 27,100us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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