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Other Non-current Assets - Investments in Joint Ventures (Details) - USD ($)
$ in Millions
1 Months Ended
Jun. 30, 2020
Jun. 30, 2011
Jun. 30, 2010
Aug. 31, 2020
License Fees        
Agreement period (in years)     10 years  
Unison Industries        
License Fees        
Agreement period (in years)   10 years    
Payment of License fee $ 25.0      
License fee capitalized $ 25.0      
Owned Through Joint Ventures        
Investments in Joint Ventures        
Investments in joint ventures       $ 9.9
Membership interest in joint ventures (as a percent)       40.00%
Amount of guarantee liability recognized       $ 8.5
Percentage on outstanding debt       40.00%
Loan to the joint venture       $ 3.0