Segment and Geographic Information - Summary of Financial and Other Information by Segment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) T	Dec. 31, 2022 USD ($) T	Dec. 31, 2021 USD ($) T
Segment Reporting Information [Line Items]
Net Sales	$ 1,385,516	$ 1,491,326	$ 1,084,694
Operating income (loss)	2,712	(163,951)	28,614
Depreciation and amortization	63,247	66,724	61,421
Capital expenditures	$ 33,770	$ 37,740	$ 30,037
Tons shipped (metric) | T	311,544	340,661	292,844
Plant, equipment and timberlands, net	$ 662,916	$ 675,811	$ 758,812
Inter-segment sales elimination
Segment Reporting Information [Line Items]
Net Sales	$ (2,397)	$ 0	$ 0
Tons shipped (metric) | T	(1,258)	0	0
Other and unallocated
Segment Reporting Information [Line Items]
Operating income (loss)	$ (59,774)	$ (226,394)	$ (49,714)
Depreciation and amortization	3,873	5,128	3,937
Capital expenditures	2,552	5,630	5,884
Plant, equipment and timberlands, net	21,144	23,062	23,565
Airlaid Materials | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	586,480	601,514	470,250
Operating income (loss)	43,207	54,809	42,244
Depreciation and amortization	30,464	30,114	28,101
Capital expenditures	$ 9,885	$ 9,691	$ 8,431
Tons shipped (metric) | T	156,442	164,844	148,134
Plant, equipment and timberlands, net	$ 335,456	$ 347,142	$ 371,324
Composite Fibers | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	483,517	523,863	556,807
Operating income (loss)	21,347	16,923	37,422
Depreciation and amortization	15,665	19,632	27,690
Capital expenditures	$ 12,286	$ 15,730	$ 11,912
Tons shipped (metric) | T	94,742	103,092	132,196
Plant, equipment and timberlands, net	$ 146,022	$ 145,959	$ 202,445
Spunlace | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	317,916	365,949	57,637
Operating income (loss)	(2,068)	(9,289)	(1,338)
Depreciation and amortization	13,245	11,850	1,693
Capital expenditures	$ 9,047	$ 6,689	$ 3,810
Tons shipped (metric) | T	61,618	72,725	12,514
Plant, equipment and timberlands, net	$ 160,294	$ 159,648	$ 161,478