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Accounts Receivable (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2017
Nov. 30, 2016
Receivables [Abstract]        
Accounts receivable, net $ 90.4 $ 112.1    
Allowance for doubtful accounts 3.4 3.3 $ 2.9 $ 0.8
Provision for bad debt 0.9 0.6 2.1  
Write-offs (0.8) (0.3) (0.1)  
Reclassifications 0.0 0.0 0.0  
Currency translation adjustment $ 0.0 $ 0.1 $ 0.1