Credit Risk (Tables)

6 Months Ended

Jun. 30, 2015

Receivables [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts during the six months endedJune 30, 2015(in thousands):

Balance at beginning of period	$	1,758
Charged (reversed) to expense	29
Write-offs, net of amounts recovered	(102		)
Foreign currency translation adjustment	(57		)
Balance at end of period	$	1,628