Leases (Supplemental Balance Sheet Information) (Details) - USD ($) $ in Thousands		Aug. 29, 2020		Aug. 31, 2019
Leases [Abstract]
Operating lease assets		$ 56,173
Finance lease assets	[1]	3,625		$ 2,958
Total leased assets		59,798		2,958
Current operating lease liabilities		21,815
Current finance lease liabilities		1,262		765
Noncurrent operating lease liabilities		34,379
Noncurrent finance lease liabilities		2,453		2,206
Total lease liabilities		$ 59,909	[2]	2,971
Weighted average remaining lease term (years), Operating leases		4 years
Weighted average remaining lease term (years), Finance leases		2 years 10 months 24 days
Weighted average discount rate, Operating leases		3.60%
Weighted average discount rate, Finance leases		2.70%
Finance lease right of use assets, Accumulated amortization		$ 1,439		$ 1,398

[1] Finance lease assets are net of accumulated amortization of $1,439 and $1,398 as of August 29, 2020 and August 31, 2019.

[2] Includes the current portion of $21,815 for operating leases and $1,262 for finance leases