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Subsequent Events (Details) - USD ($)
$ in Millions
Mar. 08, 2021
Mar. 03, 2021
Feb. 08, 2021
Sep. 30, 2019
Subsequent Event [Line Items]        
Purchase obligation       $ 2.5
Subsequent Event | Secured Debt | Revolving Credit Facility | Senior Secured Term Loan Facility        
Subsequent Event [Line Items]        
Debt instrument, term 6 years      
Debt instrument, face amount $ 53.0      
Subsequent Event | Ultramax        
Subsequent Event [Line Items]        
Purchase obligation     $ 16.5  
Subsequent Event | Panamax        
Subsequent Event [Line Items]        
Purchase obligation   $ 18.3