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Accounts Receivable, net
 6 Months Ended
Jun. 30, 2013
Receivables [Abstract]  
Accounts Receivable, net
Accounts Receivable, net
Accounts receivable, net, consist of the following:
 
 
June 30,
2013
 
December 31,
2012
 
(in thousands)
Accounts receivable, gross
$
38,225

 
$
36,755

Less allowance for doubtful accounts
(61
)
 
(655
)
Total accounts receivable, net
$
38,164

 
$
36,100