XML 49 R9.htm IDEA: XBRL DOCUMENT v2.4.1.9
Accounts Receivable, Net
12 Months Ended
Dec. 31, 2014
Receivables [Abstract]  
Accounts Receivable, Net

2.     Accounts Receivable, Net

Accounts receivable, net balances at December 31, 2014 and 2013 were as follows (in thousands):

 

     2014      2013  

Trade accounts receivable

   $ 107,174       $ 105,814   

Unbilled revenue, at net realizable value

     47,789         42,224   
  

 

 

    

 

 

 

Total accounts receivable

     154,963         148,038   

Allowance for doubtful accounts

     (11,915      (9,975
  

 

 

    

 

 

 

Accounts receivable, net

   $ 143,048       $ 138,063   
  

 

 

    

 

 

 

 

Changes in the allowance for doubtful accounts on accounts receivable are as follows (in thousands):

 

     2014      2013      2012  

Balance at beginning of period

   $ (9,975    $ (11,363    $ (8,689

Provision for losses

     (5,740      (4,664      (5,051

Charge-offs, net of recoveries

     3,800         6,052         2,377   
  

 

 

    

 

 

    

 

 

 

Balance at end of period

   $ (11,915    $ (9,975    $ (11,363