XML 49 R38.htm IDEA: XBRL DOCUMENT v3.20.4
Revenue Recognition - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Nov. 28, 2020
Nov. 30, 2019
Aug. 29, 2020
Revenue From Contract With Customer [Abstract]      
Percentage of revenues derived from route servicing fees 91.00% 91.60%  
Current assets related to deferred commissions $ 13.3   $ 13.3
Noncurrent assets related to deferred commissions 57.3   $ 55.6
Amortization expense related to deferred commissions $ 3.5 $ 3.5