v3.8.0.1
Expenses Related to Reduction in Workforce - Additional Information (Detail)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 29, 2017
USD ($)
Dec. 29, 2017
USD ($)
Employee
Expenses incurred for severance cost and benefits | $ $ 1.7 $ 1.7
Number of terminated of employees | Employee   204