Leases (Supplemental Balance Sheet Information) (Details) - USD ($) $ in Thousands		May 30, 2020		Aug. 31, 2019
Leases [Abstract]
Operating lease assets		$ 58,321
Finance lease assets	[1]	3,947		$ 2,958
Total leased assets		62,268		2,958
Current operating lease liabilities		21,888
Current finance lease liabilities		1,253		765
Noncurrent operating lease liabilities		36,163
Noncurrent finance lease liabilities		2,780		2,206
Total lease liabilities		$ 62,084	[2]	2,971
Weighted average remaining lease term (years), Operating leases		3 years 10 months 24 days
Weighted average remaining lease term (years), Finance leases		3 years 2 months 12 days
Weighted average discount rate, Operating leases		3.40%
Weighted average discount rate, Finance leases		2.70%
Finance lease right of use assets, Accumulated amortization		$ 1,126		$ 1,398

[1] Finance lease assets are net of accumulated amortization of $1,126 and $1,398 as of May 30, 2020 and August 31, 2019.

[2] Includes the current portion of $21,888 for operating leases and $1,253 for finance leases