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Accounts Receivable
 12 Months Ended
Nov. 30, 2018
Receivables [Abstract]  
Accounts Receivable
Accounts Receivable
 
The Company’s net accounts receivable was $112.1 million and $99.0 million at November 30, 2018 and 2017, respectively, and are generally unsecured. There was no single customer who represented more than 10% of the Company’s net trade receivables at November 30, 2018 or 2017.

The following table summarizes the Company's allowance for doubtful accounts:
 
November 30,
 
2018
 
2017
 
2016
 
(Dollars in millions)
Balance at beginning of period
$
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
—

 
—

 
(0.6
)
Currency translation adjustment
0.1

 
0.1

 
—

Balance at end of period
$
3.3

 
$
2.9

 
$
0.8