Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of other intangible assets

Other intangible assets consisted of the following as of December 31, 2014 (in thousands, except weighted-average useful life):

	Gross Carrying Amount		Effect of Changes in Exchange Rates			Accumulated Amortization			Net Carrying Amount		Weighted-Average Useful Life in Years
Amortizable intangibles:
Technology-based	$	35,608	$	(1,148	)	$	(18,358	)	$	16,102	7
Customer relationships	35,472		(1,838		)	(4,767		)	28,867		11
Trademarks and other	6,001		(105		)	(3,791		)	2,105		9
Total intangible assets	$	77,081	$	(3,091	)	$	(26,916	)	$	47,074

Other intangible assets consisted of the following as of December 31, 2013 (in thousands, except weighted-average useful life):

	Gross Carrying Amount		Effect of Changes in Exchange Rates		Impairment and Other Charges			Accumulated Amortization			Net Carrying Amount		Weighted-Average Useful Life in Years
Amortizable intangibles:
Technology-based	$	50,368	$	441	$	(26,168	)	$	(14,712	)	$	9,929	4
Trademarks and other	18,515		514		(5,705		)	(3,842		)	9,482		7
Total intangible assets	$	68,883	$	955	$	(31,873	)	$	(18,554	)	$	19,411

Schedule of amortization expense relating to other intangible assets

Amortization expense relating to other intangible assets included in our income from continuing operations is as follows (in thousands):

	Years Ended December 31,
	2014		2013		2012
Amortization expense	$	8,366	$	6,142	$	5,696

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated amortization expense related to intangibles for each of the five years 2015 through 2019 and thereafter is as follows (in thousands):

Year Ending December 31,
2015	$	7,414
2016	6,157
2017	5,920
2018	4,623
2019	4,178
Thereafter	18,782
	$	47,074