Intangible Assets and Goodwill (Tables)

3 Months Ended

Mar. 31, 2013

Intangible Assets and Goodwill

Schedule of components of intangible assets

							Weighted
	December 31,			March 31,			Average Useful
(in thousands)	2012			2013			Life (in years)
Patents	$	1,054		$	1,054		8.0
Less: accumulated amortization	(766		)	(798		)
Patents, net	288			256
Technological know-how	15,141			15,021			6.1
Less: accumulated amortization	(4,913		)	(5,631		)
Technological know-how, net	10,228			9,390
Customer relationships	37,358			37,181			8.7
Less: accumulated amortization	(10,793		)	(11,848		)
Customer relationships, net	26,565			25,333
Convenants not to compete	881			861			2.0
Less: accumulated amortization	(517		)	(597		)
Convenants not to compete, net	364			264
Strategic marketing agreement	6,203			6,203			10.0
Less: accumulated amortization	(293		)	(348		)
Strategic marketing agreement, net	5,910			5,855
Tradenames	843			816			3.9
Less: accumulated amortization	(196		)	(243		)
Tradenames, net	647			573
Trademarks	247			247			Indefinite
Intangible assets, net	$	44,249		$	41,918

Schedule of estimate of future amortization expense for acquired intangible assets

(in thousands)
April 1, 2013 to December 31, 2013	$	6,137
2014	7,298
2015	5,938
2016	5,685
2017	5,885
Thereafter	10,728
Total	$	41,671

Schedule of changes in carrying amounts of goodwill

	Carrying
(in thousands)	Amount
Balance at December 31, 2012	$	65,825
Foreign exchange translation effect	(320		)
Balance at March 31, 2013	$	65,505