Credit Risk (Tables)

3 Months Ended

Mar. 31, 2015

Receivables [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts during the three months endedMarch 31, 2015(in thousands):

Balance at beginning of period	$	1,758
Charged (reversed) to expense	37
Write-offs, net of amounts recovered	(19		)
Foreign currency translation adjustment	(71		)
Balance at end of period	$	1,705