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Discontinued Operations - Summary of Major Line Items Included in Results of Operations of Discontinued Operations (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Income from discontinued operations, net of tax | $ 0 | $ 0 | $ 137,688
PBC Business | Discontinued Operations, Disposed of by Sale |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net sales |  |  | 168,287
Cost of products sold (exclusive of depreciation and amortization shown separately below) |  |  | 130,555
Selling, general and administrative expense |  |  | 11,818
Depreciation and amortization |  |  | 7,722
Restructuring and integration expense |  |  | 429
Income from operations |  |  | 17,763
Interest expense |  |  | (181)
Other income (expense), net |  |  | (84)
Income from discontinued operations before gain on disposal and provision for income taxes |  |  | 17,498
Provision for income taxes on discontinued operations |  |  | (7,461)
Income from discontinued operations before gain on disposal |  |  | 10,037
Gain on disposal of discontinued operations |  |  | 213,503
Provision for income taxes on gain on disposal |  |  | (85,852)
Income from discontinued operations, net of tax |  |  | $ 137,688

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