Stock-Based Compensation (Schedule Of Activity Under Option Plans) (Details) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 27, 2015	Jun. 27, 2015	Jun. 28, 2014	Dec. 27, 2014
Stock-Based Compensation [Abstract]
Outstanding beginning balance, Number of options		18,316,720
Granted, Number of options	0	30,000	0
Exercised, Number of options		(3,848,159)
Forfeited, Number of options		(126,839)
Expired, Number of options		(313,441)
Outstanding ending balance, Number of options	14,058,281	14,058,281		18,316,720
Vested and expected to vest, Number of options	13,921,444	13,921,444
Exercisable ending balance, Number of options	12,660,615	12,660,615
Outstanding beginning balance, Weighted average exercise price per share		$ 7.53
Granted, Weighted average exercise price per share		8.88
Exercised, Weighted average exercise price per share		6.73
Forfeited, Weighted average exercise price per share		6.55
Expired, Weighted average exercise price per shre		10.46
Outstanding ending balance, Weighted average exercise price per share	$ 7.70	7.70		$ 7.53
Vested and expected to vest, Weighted average exercise price per share	7.71	7.71
Exercisable ending balance, Weighted average exercise price per share	$ 7.82	$ 7.82
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2		4 years 1 month 28 days		4 years 4 months 28 days
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2		4 years 1 month 28 days		4 years 4 months 28 days
Vested and expected to vest, Weighted average remaining contractual term (years)		4 years 18 days
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1		3 years 8 months 9 days
Outstanding beginning balance, Aggregate intrinsic value		$ 32,598,999
Outstanding ending balance, Aggregate intrinsic value	$ 20,210,660	20,210,660		$ 32,598,999
Vested and expected to vest, Aggregate intrinsic value	19,930,285	19,930,285
Exercisable ending balance, Aggregate intrinsic value	$ 17,076,637	$ 17,076,637