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Other Non-current Assets - Investments in Joint Ventures (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Sep. 30, 2022
Jun. 30, 2020
Jun. 30, 2011
Nov. 30, 2022
Nov. 30, 2021
Nov. 30, 2022
Nov. 30, 2021
Investments in Joint Ventures              
Earnings from joint ventures       $ (0.7) $ (0.4) $ (1.3) $ (0.6)
Unison Industries              
License Fees              
Agreement period (in years) 1 year   10 years        
Payment of license fee $ 18.0 $ 25.0          
License fee capitalized $ 18.0 $ 25.0          
Owned Through Joint Ventures | Joint venture in India              
Investments in Joint Ventures              
Investments in joint ventures       $ 10.8   $ 10.8  
Membership interest in joint ventures (as a percent)       40.00%   40.00%  
Amount of guarantee liability recognized       $ 8.8   $ 8.8  
Percentage on outstanding debt       40.00%   40.00%  
Loan to joint venture       $ 3.3   $ 3.3  
Earnings from joint ventures       $ 0.6 $ 0.1 $ 0.8 $ 0.1