Acquisition - Summary of Pro Forma Financial Information (Details) - Georgia-Pacific Mt. Holly LLC, Georgia-Pacific's U.S. Nonwovens Business ("Mount Holly") - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition [Line Items]
Net sales	$ 260,722	$ 750,236	$ 759,074
Income from continuing operations	$ 7,279	$ 15,339	$ 15,565
Income (loss) per share from continuing operations, basic (in dollars per share)	$ 0.16	$ 0.34	$ 0.35
Income (loss) per share from continuing operations, diluted (in dollars per share)	$ 0.16	$ 0.34	$ 0.35