Components of Senior Notes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 28, 2015	Mar. 12, 2015
2.75% Notes due March 15, 2020
Debt Instrument [Line Items]
Carrying value, long-term	$ 497,053
Unamortized discount	2,947
Principal amount	$ 500,000	$ 500,000
Remaining amortization period (years)	4 years 8 months 12 days
Fair Value of Notes (Level 2)	$ 497,805
3.80% Notes due March 15, 2025
Debt Instrument [Line Items]
Carrying value, long-term	496,907
Unamortized discount	3,093
Principal amount	$ 500,000	$ 500,000
Remaining amortization period (years)	9 years 8 months 12 days
Fair Value of Notes (Level 2)	$ 492,945