v3.8.0.1
Intangibles - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 29, 2017
Dec. 30, 2016
Dec. 29, 2017
Dec. 30, 2016
Finite-Lived Intangible Assets [Line Items]        
Amortization expense related to intangibles $ 0.4 $ 0.3 $ 0.7 $ 0.3