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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

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- Definition Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3A -URI https://asc.fasb.org/extlink&oid=109222160&loc=SL51721523-107759 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=109222160&loc=d3e1012-107759 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(12)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(14)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
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