v3.8.0.1
Cash, Cash Equivalents, and Marketable Securities (Detail) - USD ($)
$ in Thousands
Dec. 29, 2017
Jun. 30, 2017
Dec. 30, 2016
Cash, cash equivalents and marketable securities [Line Items]      
Cash and cash equivalents and Marketable securities, Carrying Cost $ 284,739 $ 285,347  
Marketable securities, Unrealized Gain/(Loss) (505) (72)  
Cash and cash equivalents 134,831 133,825 $ 85,619
Marketable securities 149,403 151,450  
Cash      
Cash, cash equivalents and marketable securities [Line Items]      
Carrying Cost 129,703 131,240  
Cash and cash equivalents 129,703 131,240  
Cash Equivalents      
Cash, cash equivalents and marketable securities [Line Items]      
Carrying Cost 5,128 2,585  
Cash and cash equivalents 5,128 2,585  
Corporate bonds and commercial papers      
Cash, cash equivalents and marketable securities [Line Items]      
Marketable securities, Carrying cost 106,783 98,247  
Marketable securities, Unrealized Gain/(Loss) (302) 27  
Marketable securities 106,481 98,274  
U.S. agency and U.S. treasury securities      
Cash, cash equivalents and marketable securities [Line Items]      
Marketable securities, Carrying cost 38,823 50,768  
Marketable securities, Unrealized Gain/(Loss) (190) (102)  
Marketable securities 38,633 50,666  
Sovereign And Municipal Securities      
Cash, cash equivalents and marketable securities [Line Items]      
Marketable securities, Carrying cost 4,302 2,507  
Marketable securities, Unrealized Gain/(Loss) (13) 3  
Marketable securities $ 4,289 $ 2,510