Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts Activity [Table Text Block]

Activity within our accounts receivable allowance was as follows (in thousands):

	Year Ended
	2013			2012			2011
Balance, beginning of period	$	2,718		$	5,553		$	5,685
Expense (reversal)	473			(154		)	(18		)
Write-offs	(263		)	(2,732		)	(25		)
Translation adjustments	41			51			(89		)
Balance, end of period	$	2,969		$	2,718		$	5,553