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Discontinued Operations - Summary of Discontinued Operations included in Consolidated Statements of Income (Loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Non-operating income (expense)      
Income (loss) before income taxes $ (91) $ 216 $ 544
Income tax provision 0 0 29
Income (loss) from discontinued operations (91) 216 515
Specialty Papers      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Total revenues 0 0 0
Costs of products sold 0 0 0
Gross profit 0 0 0
Selling, general and administrative expenses 91 (216) (544)
(Gains) losses on dispositions of plant, equipment and timberlands, net 0 0 0
Operating income (loss) (91) 216 544
Non-operating income (expense)      
Interest expense 0 0 0
Other, net 0 0 0
Income (loss) before income taxes (91) 216 544
Income tax provision 0 0 29
Income (loss) from discontinued operations (91) 216 515
Specialty Papers | Net sales      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Total revenues 0 0 0
Specialty Papers | Energy and related sales, net      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Total revenues $ 0 $ 0 $ 0