Derivative Instruments (Tables)

9 Months Ended

Oct. 01, 2011

Derivative Instruments [Abstract]

Financial Information Related To Hedging Of Net Assets Included In Consolidated Statement Of Earnings

	Three Months Ended						Nine Months Ended
	October 1, 2011			October 2, 2010			October 1, 2011			October 2, 2010
Change in gains (losses) from foreign exchange derivatives	$	3,108		$	(6,446	)	$	(3,155	)	$	2,626
Gain (loss) on net foreign currency assets		(3,281	)		6,298			1,855			(2,182	)
Foreign exchange gain (loss)	$	(173	)	$	(148	)	$	(1,300	)	$	444

	As of
	October 1, 2011		December 31, 2010
Notional balance of outstanding contracts:
Pound/US dollar	£	6,263	£	6,162
Euro/US dollar	€	37,378	€	46,307
Net fair value of outstanding contracts	$	242	$	667

Financial Information Related To Cash Flow Hedges

	As of
	October 1, 2011		December 31, 2010
Net unrealized gains (losses) deferred in other comprehensive income:
Gross	$	4,164	$	(1,522	)
Income tax expense (benefit)		1,326		(573	)
Net	$	2,838	$	(949	)

Financial Information Related To Cash Flow Hedges Of Future Revenues

	As of
	October 1, 2011			December 31, 2010
Notional balance of outstanding contracts versus the dollar	€	92,245		€	73,800
Hedge effectiveness		100	%		100	%

	Three Months Ended					Nine Months Ended
	October 1, 2011			October 2, 2010		October 1, 2011			October 2, 2010
Net gains and (losses) included in revenue	$	(1,487	)	$	0	$	(4,272	)	$	0

Forward Contract Amounts Recorded In Consolidated Balance Sheet

	As of
	October 1, 2011		December 31, 2010
Assets:
Prepaid expenses and other current assets	$	7,111	$	3,275
Total	$	7,111	$	3,275
Liabilities:
Accrued liabilities	$	0	$	0
Total	$	0	$	0