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Segment Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) GT	Sep. 30, 2021 USD ($) GT	Sep. 30, 2022 USD ($) T	Sep. 30, 2021 USD ($) T
Segment Reporting Information [Line Items]
Net Sales	$ 371,780	$ 279,651	$ 1,117,423	$ 750,236
Operating income (loss)	(34,067)	14,526	(141,032)	39,968
Depreciation and amortization	15,546	15,710	50,482	44,176
Capital expenditures	$ 7,387	$ 7,308	$ 30,084	$ 18,519
Tons shipped (metric)	84,557	76,263	260,841	208,053
Other and unallocated
Segment Reporting Information [Line Items]
Operating income (loss)	$ (52,585)	$ (6,028)	$ (185,779)	$ (23,342)
Depreciation and amortization	1,231	1,043	3,822	2,913
Capital expenditures	1,659	1,797	4,680	4,317
Composite Fibers
Segment Reporting Information [Line Items]
Net Sales	$ 128,269	$ 138,118	$ 387,436	$ 420,965
Tons shipped (metric)	24,958	32,737	77,415	101,348
Composite Fibers | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 6,636	$ 5,812	$ 12,080	$ 32,940
Depreciation and amortization	3,961	6,904	15,276	20,885
Capital expenditures	2,462	2,585	12,720	8,240
Airlaid Materials
Segment Reporting Information [Line Items]
Net Sales	$ 154,351	$ 141,533	$ 447,523	$ 329,271
Tons shipped (metric)	41,925	43,526	125,658	106,705
Airlaid Materials | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ 16,553	$ 14,742	$ 40,718	$ 30,370
Depreciation and amortization	7,400	7,763	22,571	20,378
Capital expenditures	1,925	2,926	7,457	5,962
Spunlace
Segment Reporting Information [Line Items]
Net Sales	$ 89,160	$ 0	$ 282,464	$ 0
Tons shipped (metric)	17,674	0	57,768	0
Spunlace | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ (4,671)	$ 0	$ (8,051)	$ 0
Depreciation and amortization	2,954	0	8,813	0
Capital expenditures	$ 1,341	$ 0	$ 5,227	$ 0

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