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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
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] |  |  |
Net sales | $ 168,287 | $ 248,534 | $ 261,837
Cost of products sold (exclusive of depreciation and amortization shown separately below) | 130,555 | 192,994 | 205,361
Selling, general and administrative expense | 11,818 | 16,992 | 17,468
Depreciation and amortization | 7,722 | 11,852 | 11,496
(Gain) loss on disposal of assets |  | 27 |
Restructuring and integration expense | 429 | 4,366 | 2,019
Income from operations | 17,763 | 22,303 | 25,493
Interest income (expense) | (181) | (284) | (317)
Interest and other income (expense) | (84) | 503 | (654)
Income from discontinued operations before gain on disposal and provision for income taxes | 17,498 | 22,522 | 24,522
Provision for income taxes on discontinued operations | (7,461) | (6,369) | (6,633)
Income from discontinued operations before gain on disposal | 10,037 | 16,153 | 17,889
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 | $ 16,153 | $ 17,889

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- Definition Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721525-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e957-107759 + Details
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- Definition Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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- Definition Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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