Credit Risk (Tables)

6 Months Ended

Jun. 30, 2013

Receivables [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts during the six months ended June 30, 2013(in thousands):

	Six months ended
	June 30, 2013
Balance at beginning of period		$1,733
Charged to expense	250
Write-offs	(3		)
Foreign currency translation adjustment	(21		)
Balance at end of period		$1,959