Leases - Additional Information (Detail) $ in Millions	6 Months Ended
	Feb. 15, 2020 USD ($)
Renewal Options And Lease term	The leases have varying terms and expire at various dates through 2040. Retail leases typically have initial terms of between one and 20 years, with one to six optional renewal periods of one to five years each.
Lease Accumulated Amortization	$ 93.4
Additional leases not yet commenced, undiscounted future payments	$ 31.1
Minimum [Member]
Operating lease commencement date	2020
Maximum [Member]
Operating lease commencement date	2022