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Leases - Schedule of Components of Lease Cost (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 29, 2019
Dec. 29, 2019
Leases [Abstract]    
Operating lease cost $ 741 $ 1,594
Variable lease cost 107 197
Finance lease cost:    
Amortization of lease assets 678 1,205
Interest on lease liabilities 101 201
Short-term lease cost 206 547
Total lease cost $ 1,833 $ 3,744