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Stock-Based Compensation Plans - Additional Information (Detail)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 27, 2018
USD ($)
shares
Dec. 27, 2018
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of stock units awarded   56,700
Number of stock options awarded   0
Unrecognized compensation expense related to non-vested share-based compensation | $ $ 5,236 $ 5,236
Expected weighted average recognize period of unrecognized compensation cost related to non-vested share-based compensation   1 year 10 months 24 days
Restricted Stock Unit [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of stock units awarded 56,700 56,700
Restricted stock units vested   66,207
Restricted Stock Unit [Member] | Employees [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period of restricted stock units granted   3 years
Restricted Stock Unit [Member] | Non Employee Directors [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period of restricted stock units granted   1 year