Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

Balance at December 31, 2012	$	87,359
Acquisitions		2,192
Currency exchange		(3,151)
Balance at March 31, 2013	$	86,400

	March 31,		December 31,
	2013		2012
Intangible assets subject to amortization:
Gross carrying amount	$	86,909	$	69,707
Accumulated amortization		(26,072)		(24,161)
Currency exchange		(7,885)		(7,051)
Net value		52,952		38,495
Intangible assets with indefinite lives:
Gross carrying amount		6,403		6,403
Currency exchange		(732)		(561)
Total		5,671		5,842
Total intangible assets, net	$	58,623	$	44,337