The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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The net realized foreign currency transaction gain (loss) (pretax) included in determining net income from transactions that were settled as of the balance sheet date.

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Derivative Instruments (Financial Information Related To Hedging Of Net Assets Included In Consolidated Statement Of Earnings) (Details) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011 USD ($)	Oct. 01, 2011 USD ($)	Jul. 02, 2011 USD ($)	Apr. 02, 2011 USD ($)	Dec. 31, 2010 USD ($)	Oct. 02, 2010 USD ($)	Jul. 03, 2010 USD ($)	Apr. 03, 2010 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Dec. 31, 2011 Euro/US Dollar [Member] EUR (€)	Dec. 31, 2010 Euro/US Dollar [Member] EUR (€)	Dec. 31, 2011 Pound/US Dollar [Member] GBP (£)	Dec. 31, 2010 Pound/US Dollar [Member] GBP (£)
Derivative [Line Items]
Change in gains (losses) from foreign exchange derivatives									$ (825)	$ 5,074	$ (512)
Gain (loss) on net foreign currency assets									(1,181)	(5,243)	408
Net foreign exchange loss	(706)	(173)	(833)	(294)	(613)	(148)	424	168	(2,006)	(169)	(104)
Notional balance of outstanding contracts												36,684	46,307	6,016	6,162
Net fair value of outstanding contracts	$ 54				$ 667				$ 54	$ 667