Cash, Cash Equivalents and Marketable Securities - Additional Information (Detail) |
6 Months Ended |
|---|---|
|
Dec. 30, 2016
USD ($)
| |
| Cash, cash equivalents and marketable securities [Line Items] | |
| Loss from sales and maturities of available-for-sale securities | $ (20,000) |
| Impairment losses | 0 |
| Cash, cash equivalents and marketable securities at financial institutions located in the United States | $ 40,000,000 |
| Minimum | |
| Cash, cash equivalents and marketable securities [Line Items] | |
| Maturities Period of Short-term marketable securities | 3 months |
| Maximum | |
| Cash, cash equivalents and marketable securities [Line Items] | |
| Maturities Period of Short-term marketable securities | 3 years |