SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023 USD ($) T	Sep. 30, 2022 USD ($) T	Sep. 30, 2023 USD ($) T	Sep. 30, 2022 USD ($) T	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Net Sales	$ 329,921	$ 371,780	$ 1,065,134	$ 1,117,423	$ 1,500,000
Operating income (loss)	2,653	(34,067)	(1,719)	(141,032)
Depreciation and amortization	15,693	15,546	47,394	50,482
Capital expenditures	$ 7,771	$ 7,387	$ 25,229	$ 30,084
Tons shipped (metric) | T	76,372	84,557	236,243	260,841
Inter-segment sales elimination
Segment Reporting Information [Line Items]
Net Sales	$ (599)	$ 0	$ (1,797)	$ 0
Tons shipped (metric) | T	(328)	0	(925)	0
Other and unallocated
Segment Reporting Information [Line Items]
Operating income (loss)	$ (14,758)	$ (52,585)	$ (46,458)	$ (185,779)
Depreciation and amortization	953	1,231	2,901	3,822
Capital expenditures	296	1,659	2,357	4,680
Airlaid Material | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	147,014	154,351	458,966	447,523
Operating income (loss)	11,196	16,553	34,836	40,718
Depreciation and amortization	7,553	7,400	22,876	22,571
Capital expenditures	$ 2,625	$ 1,925	$ 7,039	$ 7,457
Tons shipped (metric) | T	40,076	41,925	119,149	125,658
Composite Fibers | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	$ 109,715	$ 128,269	$ 368,031	$ 387,436
Operating income (loss)	7,268	6,636	14,293	12,080
Depreciation and amortization	3,898	3,961	11,760	15,276
Capital expenditures	$ 2,579	$ 2,462	$ 8,352	$ 12,720
Tons shipped (metric) | T	22,188	24,958	71,972	77,415
Spunlace | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	$ 73,791	$ 89,160	$ 239,934	$ 282,464
Operating income (loss)	(1,053)	(4,671)	(4,390)	(8,051)
Depreciation and amortization	3,289	2,954	9,857	8,813
Capital expenditures	$ 2,271	$ 1,341	$ 7,481	$ 5,227
Tons shipped (metric) | T	14,436	17,674	46,047	57,768