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Leases - Narrative (Detail)
3 Months Ended 9 Months Ended
Feb. 02, 2020
USD ($)
Feb. 02, 2020
USD ($)
Operating Lease Remaining Lease Terms 3 years 4 months 24 days 3 years 4 months 24 days
Lessee, Operating Lease, Option to Extend   renewal options for additional periods ranging up to 10 years
Operating Lease Expenses $ 726,000 $ 2,200,000
Minimum [Member]    
Operating Lease Remaining Lease Terms 1 year 1 year
Maximum [Member]    
Operating Lease Remaining Lease Terms 6 years 6 years