Segment Information (Details) $ in Thousands	3 Months Ended												12 Months Ended
	Jul. 31, 2020 USD ($)	[1],[2]	May 01, 2020 USD ($)	[2],[3]	Jan. 31, 2020 USD ($)	Nov. 01, 2019 USD ($)	Aug. 02, 2019 USD ($)	[1],[2]	May 03, 2019 USD ($)	[2],[3]	Feb. 01, 2019 USD ($)	Nov. 02, 2018 USD ($)	Jul. 31, 2020 USD ($) Segment Line	Aug. 02, 2019 USD ($)	Aug. 03, 2018 USD ($)
Segment Information [Abstract]
Number of product lines | Line													2
Number of reportable operating segments | Segment													1
Disaggregation of Revenue [Abstract]
Revenue	$ 495,065		$ 432,544		$ 846,143	$ 749,040	$ 787,098		$ 739,603		$ 811,707	$ 733,543	$ 2,522,792	$ 3,071,951	$ 3,030,445
Restaurant [Member]
Disaggregation of Revenue [Abstract]
Revenue													2,032,030	2,482,377	2,439,389
Retail [Member]
Disaggregation of Revenue [Abstract]
Revenue													$ 490,762	$ 589,574	$ 591,056

[1] In the fourth quarter of 2020, the Company completed a sale and leaseback transaction and recorded a gain on the sale and leaseback transaction of $69,954.

[2] The Company’s operating results were adversely affected by the impact of the COVID-19 pandemic.

[3] In the third quarter of 2020, the Company recorded a loss of $132,878, which represented its equity investment in PBS HC and its receivable related to the principal and accumulated interest amounts on PBS HC promissory notes.  See Note 3 for further information regarding the Company’s investment in PBS HC.