Acquisition - Summary of Unaudited Pro Forma Financial Information (Details) - Georgia-Pacific Mt. Holly LLC, Georgia-Pacific's U.S. Nonwovens Business ("Mount Holly") [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Business Acquisition [Line Items]
Net sales	$ 254,452	$ 241,641	$ 501,083	$ 498,352
Income (loss) from continuing operations	$ (919)	$ (766)	$ 7,824	$ 8,286
Income (loss) per share from continuing operations	$ (0.02)	$ (0.02)	$ 0.17	$ 0.19