Goodwill (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill [Abstract]

Schedule Of Goodwill [Table Text Block]

Balance at December 31, 2010	$	68,949
Currency exchange		(1,131)
Balance at December 31, 2011	$	67,818
Acquisitions		16,913
Currency exchange		2,628
Balance at December 31, 2012	$	87,359