GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill by Segment

The following table sets forth the change in carrying value of goodwill for each reportable segment and for the Company as of March 31, 2021:

In thousands	Performance Materials		Technical Nonwovens		Thermal Acoustical Solutions		Total
Gross balance at December 31, 2020	$	143,659	$	55,607	$	12,160	$	211,426
Accumulated impairment	(111,671)		—		(12,160)		(123,831)
Net balance at December 31, 2020	31,988		55,607		—		87,595
Foreign currency translation	(23)		(377)		—		(400)
Net balance at March 31, 2021	$	31,965	$	55,230	$	—	$	87,195

Schedule of Impaired Intangible Assets

The table below presents the gross carrying amount and, as applicable, the accumulated amortization of the Company’s acquired intangible assets, other than goodwill, as of March 31, 2021 and December 31, 2020. These amounts are included in Other intangible assets, net on the Company's Condensed Consolidated Balance Sheets.

		At March 31, 2021				At December 31, 2020
In thousands	Amortization Period	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
Customer Relationships	10 - 14 years	$	143,184	$	(53,970)	$	143,479	$	(50,076)
Patents	28 years	650		(619)		650		(616)
Technology	15 years	2,500		(1,185)		2,500		(1,144)
Trade Names	3 - 5 years	7,446		(7,210)		7,495		(7,167)
License Agreements	10 years	—		—		185		(185)
Other	7 - 15 years	459		(459)		467		(467)
Total other intangible assets		$	154,239	$	(63,443)	$	154,776	$	(59,655)