Fair Value Measurements (Tables)

9 Months Ended

Sep. 24, 2011

Fair Value Measurements [Abstract]

Schedule Of Assets And Liabilities Measured At Fair Value

	Level 2
(In thousands)	Fair Value Measurement Category
	September 24, 2011		December 25, 2010		September 25, 2010
Assets
Commodity contracts - fuel	$	725	$	253	$	—
Foreign exchange contracts		952		—		—
Liabilities:
Foreign exchange contracts	$	38	$	434	$	304

Schedule Of Fair Value Of Senior Notes

	September 24, 2011				December 25, 2010				September 25, 2010
(In thousands)	Carrying Value		Fair Value		Carrying Value		Fair Value		Carrying Value		Fair Value
$400 million senior notes	$	399,998	$	388,000	$	400,067	$	398,000	$	400,093	$	393,480