Components of Senior Notes (Detail) - USD ($)	6 Months Ended
	Dec. 27, 2015	Jun. 28, 2015	Mar. 12, 2015
2.75% Notes due March 15, 2020
Debt Instrument [Line Items]
Carrying value, long-term	$ 497,348,000	$ 497,053,000
Unamortized discount	2,652,000	2,947,000
Principal amount	$ 500,000,000	500,000,000	$ 500,000,000
Remaining amortization period (years)	4 years 2 months 12 days
Fair Value of Notes (Level 2)	$ 484,030,000
3.80% Notes due March 15, 2025
Debt Instrument [Line Items]
Carrying value, long-term	497,025,000	496,907,000
Unamortized discount	2,975,000	3,093,000
Principal amount	$ 500,000,000	$ 500,000,000	$ 500,000,000
Remaining amortization period (years)	9 years 2 months 12 days
Fair Value of Notes (Level 2)	$ 473,785,000