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 Consolidated Statement Of Earnings As Other Income (Expense)) (Details) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 USD ($)	Apr. 02, 2011 USD ($)	Dec. 31, 2011 USD ($)	Mar. 31, 2012 Euro/US Dollar [Member] EUR (€)	Dec. 31, 2011 Euro/US Dollar [Member] EUR (€)	Mar. 31, 2012 Pound/US Dollar [Member] GBP (£)	Dec. 31, 2011 Pound/US Dollar [Member] GBP (£)
Derivative [Line Items]
Change in gains (losses) from foreign exchange derivatives	$ (2,035)	$ (4,821)
Gain on net foreign currency assets	1,693	4,527
Foreign exchange loss	(342)	(294)
Notional balance of outstanding contracts				38,400	36,684	5,291	6,016
Net fair value of outstanding contracts	$ (236)		$ 54