Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Gross and net Carrying Amounts of Goodwill

Gross and net carrying amounts of goodwill at December 31, 2014 and 2013 were as follows:

In thousands	Performance Materials		Industrial Filtration		Thermal/ Acoustical Metals			Other Products and Services			Totals
Goodwill	$	13,929	$	—	$	12,160		$	5,787		$	31,876
Accumulated amortization/impairment	—		—		(12,160		)	(1,127		)	(13,287		)
Balance at December 31, 2013	13,929		—		—			4,660			18,589
Goodwill	13,340		3,943		12,160			5,787			35,230
Accumulated amortization/impairment	—		—		(12,160		)	(1,127		)	(13,287		)
Balance at December 31, 2014	$	13,340	$	3,943	$	—		$	4,660		$	21,943

Changes in the Carrying Amounts of Goodwill

The changes in the carrying amounts of goodwill in 2013 and 2014 were as follows:

In thousands	Performance Materials			Industrial Filtration		Other Products and Services		Totals
Balance at January 1, 2013	$	13,622		$	—	$	4,660	$	18,282
Goodwill adjustment	110			—		—		110
Currency translation adjustment	197			—		—		197
Balance at December 31, 2013	13,929			—		4,660		18,589
Goodwill adjustment	—			3,943		—		3,943
Currency translation adjustment	(589		)	—		—		(589		)
Balance at December 31, 2014	$	13,340		$	3,943	$	4,660	$	21,943

Amortization of the Companys Acquired Intangible Assets other than Goodwill

The table below presents the gross carrying amount and, as applicable, the accumulated amortization of the Company’s acquired intangible assets other than goodwill included in “Other intangible assets, net” in the Consolidated Balance Sheets as of December 31, 2014 and 2013:

	December 31, 2014					December 31, 2013
In thousands	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
License agreements	$	818	$	(818	)	$	881	$	(881	)
Technology	2,500		(143		)	—		—
Customer Relationships	2,477		(195		)	—		—
Patents	6,037		(3,274		)	6,766		(3,307		)
Other	691		(252		)	278		(227		)
Total amortized intangible assets	$	12,523	$	(4,682	)	$	7,925	$	(4,415	)