XML 42 R31.htm IDEA: XBRL DOCUMENT v3.20.2
Critical Accounting Policies and Estimates - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Aug. 29, 2020
May 30, 2020
Critical Accounting Policies And Estimates [Line Items]    
Finished goods $ 53.3 $ 51.8
Raw material 4.0 3.6
Work in progress 2.9 2.1
Inventory valuation reserves $ 5.6 $ 5.4
Maximum    
Critical Accounting Policies And Estimates [Line Items]    
Services revenue recognized as percentage of aggregate revenue 5.00%