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Accounts Receivable (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 30, 2018
Nov. 30, 2017
Nov. 30, 2016
Nov. 30, 2015
Receivables [Abstract]        
Accounts receivable, net $ 112.1 $ 99.0    
Allowance for doubtful accounts 3.3 2.9 $ 0.8 $ 1.3
Provision for bad debt 0.6 2.1 0.3  
Write-offs (0.3) (0.1) (0.2)  
Reclassifications 0.0 0.0 (0.6)  
Currency translation adjustment $ 0.1 $ 0.1 $ 0.0