GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Gross and Net Carrying Amounts of Goodwill

The following table sets forth the gross and carrying amounts of goodwill for each reportable segment and for the Company as of December 31, 2020 and 2019:

In thousands	Performance Materials		Technical Nonwovens		Thermal Acoustical Solutions		Totals
Gross balance at January 1, 2019	$	143,658	$	53,254	$	12,160	$	209,072
Accumulated impairment	(63,000)		—		(12,160)		(75,160)
Net Balance at December 31, 2019	$	80,658	$	53,254	$	—	$	133,912
In thousands	Performance Materials		Technical Nonwovens		Thermal Acoustical Solutions		Totals
Gross balance at January 1, 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

Schedule of Changes in the Carrying Amounts of Goodwill

The following table sets forth the changes in the carrying amounts of goodwill for each reportable segment and for the Company as of December 31, 2020 and 2019:

In thousands	Performance Materials		Technical Nonwovens		Totals
Balance at January 1, 2019	$	144,626	$	52,337	$	196,963
Goodwill reduction (1)	(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
Goodwill impairment	(48,671)		—		(48,671)
Currency translation adjustment	1		2,353		2,354
Balance at December 31, 2020	$	31,988	$	55,607	$	87,595

(1)The net decrease in goodwill of $0.7 million in 2019 in the Performance Materials segment was due to a goodwill reduction of $1.3 million as a result of post-closing purchase price adjustments in the second and third quarters of 2019 related to the acquisition of Interface Performance Materials on August 31, 2018, partially offset by acquisition activity in the second quarter of 2019 resulting in an increase in goodwill of $0.6 million.

Schedule of Impairment Charges

As a result of these impairment tests, the Company recorded the following impairment charges during the three-month period ended March 31, 2020:

In thousands	Performance Materials		Technical Nonwovens		Thermal Acoustical Solutions		Totals
Impairment of goodwill	$	48,671	$	—	$	—	$	48,671
Impairment of other long-lived assets	12,438		—		—		12,438
Total impairments	$	61,109	$	—	$	—	$	61,109

Schedule of Amortization of the Company's Acquired Intangible Assets other than Goodwill

Other intangible assets consisted of:

	At December 31, 2020				At December 31, 2019
In thousands	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
Customer relationships	$	143,479	$	(50,076)	$	142,400	$	(30,648)
Patents	650		(616)		759		(607)
Technology	2,500		(1,144)		2,500		(977)
Trade names	7,495		(7,167)		7,293		(5,143)
License agreements	185		(185)		610		(610)
Other	467		(467)		551		(551)
Total other intangible assets	$	154,776	$	(59,655)	$	154,113	$	(38,536)