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Accounts Receivable (Tables)
 12 Months Ended
Dec. 31, 2015
Accounts Receivable  
Schedule of allowance for bad debt

The following table sets forth activities in our allowance for bad debt (in millions):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    
2015

    
2014

    
2013

Balance as of beginning of period

 

$
25.7

 

$
29.1

 

$
23.7

Charges to provision for bad debt

 

 
7.5

 

 
3.8

 

 
11.7

Write-off of uncollectible accounts receivable

 

 
(8.3)

 

 
(8.0)

 

 
(6.9)

Recoveries of bad debt

 

 
0.5

 

 
0.8

 

 
0.6

Translation Adjustments

 

 
(0.4)

 

 

 —

 

 

 —

Balance as of end of period

 

$
25.0

 

$
25.7

 

$
29.1