Goodwill and Long-Lived Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Gross and Net Carrying Amounts of Goodwill

Gross and net carrying amounts of goodwill at December 31, 2019 and 2018 were as follows:

In thousands	Performance Materials			Technical Nonwovens		Thermal Acoustical Solutions			Totals
Goodwill	$	144,626		$	52,337	$	12,160		$	209,123
Accumulated amortization/impairment	—			—		(12,160		)	(12,160		)
Balance at December 31, 2018	144,626			52,337		—			196,963
Goodwill	143,658			53,254		12,160			209,072
Accumulated amortization/impairment	(63,000		)	—		(12,160		)	(75,160		)
Balance at December 31, 2019	$	80,658		$	53,254	$	—		$	133,912

Schedule of Changes in the Carrying Amounts of Goodwill

The changes in the carrying amounts of goodwill in 2019 and 2018 were as follows:

In thousands	Performance Materials			Technical Nonwovens			Totals
Balance at January 1, 2018	$	13,307		$	55,662		$	68,969
Goodwill addition	131,509			—			131,509
Currency translation adjustment	(190		)	(3,325		)	(3,515		)
Balance at December 31, 2018	144,626			52,337			196,963
Goodwill reduction	(662		)	—			(662		)
Goodwill impairment	(63,000		)	—			(63,000		)
Currency translation adjustment	(306		)	917			611
Balance at December 31, 2019	$	80,658		$	53,254		$	133,912

Schedule of Amortization of the Company's 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, 2019 and 2018:

	December 31, 2019					December 31, 2018
In thousands	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
Customer relationships	$	142,400	$	(30,648	)	$	141,455	$	(11,453	)
Patents	759		(607		)	4,333		(3,816		)
Technology	2,500		(977		)	2,500		(810		)
Trade names	7,293		(5,143		)	7,235		(2,840		)
License agreements	610		(610		)	619		(619		)
Other	551		(551		)	561		(561		)
Total amortized intangible assets	$	154,113	$	(38,536	)	$	156,703	$	(20,099	)

As a result of these impairment tests, the Company recorded the following impairment charges during the fourth quarter of 2019:

In thousands	Performance Materials		Technical Nonwovens		Thermal Acoustical Solutions		Totals
Impairment of goodwill	$	63,000	$	—	$	—	$	63,000
Impairment of other long-lived assets	1,206		—		—		1,206
Total impairments	64,206		—		—		64,206