Fair Value Measurements - Schedule of Assets or Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Feb. 27, 2021	Aug. 29, 2020
Assets:
Cash equivalents	$ 196,913	$ 196,478
Pension plan assets	4,071	4,146
Foreign currency forward contracts	(17)	87
Total assets at fair value	200,967	200,711
Level 1
Assets:
Cash equivalents	196,913	196,478
Pension plan assets	0	0
Foreign currency forward contracts	0	0
Total assets at fair value	196,913	196,478
Level 2
Assets:
Cash equivalents	0	0
Pension plan assets	4,071	4,146
Foreign currency forward contracts	(17)	87
Total assets at fair value	4,054	4,233
Level 3
Assets:
Cash equivalents	0	0
Pension plan assets	0	0
Foreign currency forward contracts	0	0
Total assets at fair value	$ 0	$ 0