Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	May 27, 2017	Aug. 27, 2016
Assets:
Cash equivalents	$ 179,028	$ 172,760
Pension plan assets	4,703	4,753
Foreign currency forward contracts	393	188
Total assets at fair value	184,124	177,701
Level 1
Assets:
Cash equivalents	179,028	172,760
Pension plan assets	0	0
Foreign currency forward contracts	0	0
Total assets at fair value	179,028	172,760
Level 2
Assets:
Cash equivalents	0	0
Pension plan assets	4,703	4,753
Foreign currency forward contracts	393	188
Total assets at fair value	5,096	4,941
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