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Allowance for Doubtful Accounts (Tables)
 12 Months Ended
Dec. 31, 2016
Allowance for Doubtful Accounts  
Schedule of change to the allowance for doubtful accounts

 

 

 

 

 

 

 

 

 

 

 

(in thousands)

    

 

2016

 

 

2015

    

 

2014

 

 

 

 

 

 

 

 

 

 

 

 

Balance at beginning of year

 

$
12,363

 

$
8,528

 

$
8,876

 

Bad debt expense

 

 
6,507

 

 
4,771

 

 
2,545

 

Amount of receivables written off

 

 
(6,315)

 

 
(634)

 

 
(2,485)

 

Foreign currency translation

 

 
(300)

 

 
(302)

 

 
(408)

 

Balance at end of year

 

$
12,255

 

$
12,363

 

$
8,528