Credit Risk (Tables)

9 Months Ended

Sep. 30, 2014

Receivables [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts during the nine months endedSeptember 30, 2014(in thousands):

	Nine months ended
	September 30, 2014
Balance at beginning of period	$	2,183
Charged (reversed) to expense	80
Write-offs, net of amounts recovered	(69		)
Foreign currency translation adjustment	(87		)
Balance at end of period	$	2,107