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Quarterly Results of Operations (Unaudited) - Summary of Unaudited Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Selected Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 619,793 | $ 584,954 | $ 405,443
Cost of sales (exclusive of depreciation and amortization) |  |  |  |  |  |  |  |  | 459,080 | 428,843 | 320,632
Income (loss) from continuing operations |  |  |  |  |  |  |  |  | 25,364 | (9,490) | (24,375)
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  | 137,688 | 16,153 | 17,889
Comprehensive income (loss) |  |  |  |  |  |  |  |  | $ 175,903 | $ (2,050) | $ (33,026)
Basic income (loss) from continuing operations per share |  |  |  |  |  |  |  |  | $ 0.92 | $ (0.35) | $ (1.15)
Basic net income (loss) per share |  |  |  |  |  |  |  |  | 5.94 | 0.25 | (0.31)
Diluted income (loss) from continuing operations per share |  |  |  |  |  |  |  |  | 0.91 | (0.35) | (1.15)
Diluted net income (loss) per share |  |  |  |  |  |  |  |  | $ 5.87 | $ 0.25 | $ (0.31)
As Previously Reported [Member] |  |  |  |  |  |  |  |  |  |  |
Selected Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 148,156 | $ 225,875 | $ 226,314 | $ 202,029 | $ 204,961 | $ 214,272 | $ 212,226 |  |  |
Cost of sales (exclusive of depreciation and amortization) |  | 110,836 | 166,040 | 166,954 | 151,936 | 152,538 | 156,794 | 159,754 |  | $ 621,022 |
Income (loss) from continuing operations |  | (2,930) | (21,529) | 7,407 | 3,063 | 4,147 | 2,031 | (1,299) |  | 7,942 | $ (7,431)
Income from discontinued operations, net of tax |  | 135,825 |  |  |  |  |  |  |  |  |
Net income (loss) |  | 132,895 | (21,529) | 7,407 | 3,063 | 4,147 | 2,031 | (1,299) |  |  |
Comprehensive income (loss) |  | $ 129,735 | $ (12,289) | $ 12,113 | $ (10,212) | $ 8,740 | $ (973) | $ 4,418 |  | $ 1,973 | $ (31,951)
Basic income (loss) from continuing operations per share |  | $ (0.11) | $ (0.78) | $ 0.27 | $ 0.11 | $ 0.15 | $ 0.08 | $ (0.05) |  |  |
Basic net income (loss) per share |  | 4.82 | (0.78) | 0.27 | 0.11 | 0.15 | 0.08 | (0.05) |  | $ 0.29 | $ (0.35)
Diluted income (loss) from continuing operations per share |  | (0.11) | (0.78) | 0.27 | 0.11 | 0.15 | 0.07 | (0.05) |  |  |
Diluted net income (loss) per share |  | $ 4.82 | $ (0.78) | $ 0.27 | $ 0.11 | $ 0.15 | $ 0.07 | $ (0.05) |  | $ 0.29 | $ (0.35)
Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |
Selected Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cost of sales (exclusive of depreciation and amortization) |  | $ 436 |  | $ 485 | $ 466 | $ 91 | $ 114 | $ 144 |  | $ 815 |
Income (loss) from continuing operations |  | (550) | $ 391 | 4 | (1,512) | 419 | (172) | (14) |  | (1,279) | $ 945
Income from discontinued operations, net of tax |  | (6,384) |  |  |  |  |  |  |  |  |
Net income (loss) |  | (6,934) | 391 | 4 | (1,512) | 419 | (172) | (14) |  |  |
Comprehensive income (loss) |  | $ (6,606) | $ 662 | $ 403 | $ (90) | $ (2,938) | $ (1,879) | $ 884 |  | $ (4,023) | $ (1,075)
Basic income (loss) from continuing operations per share |  | $ (0.02) | $ 0.01 | $ 0.00 | $ (0.06) | $ 0.02 | $ (0.01) | $ 0.00 |  |  |
Basic net income (loss) per share |  | (0.25) | 0.01 | 0.00 | (0.06) | 0.02 | (0.01) | 0.00 |  | $ (0.05) | $ 0.04
Diluted income (loss) from continuing operations per share |  | (0.02) | 0.01 | 0.00 | (0.06) | 0.02 | (0.01) | 0.00 |  |  |
Diluted net income (loss) per share |  | $ (0.25) | $ 0.01 | $ 0.00 | $ (0.06) | $ 0.02 | $ (0.01) | $ 0.00 |  | $ (0.05) | $ 0.04
Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Selected Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  | $ (67,928) | $ (68,759) | $ (60,385) | $ (58,247) | $ (65,157) | $ (64,745) |  |  |
Cost of sales (exclusive of depreciation and amortization) |  |  | (51,526) | (52,959) | (47,597) | (45,353) | (49,580) | (50,464) |  | $ (192,994) |
Income (loss) from continuing operations |  |  | (5,236) | (5,518) | (3,737) | (3,622) | (4,326) | (4,468) |  | (16,153) | $ (17,889)
Income from discontinued operations, net of tax |  |  | $ 5,236 | $ 5,518 | $ 3,737 | $ 3,622 | $ 4,326 | $ 4,468 |  |  |
Basic income (loss) from continuing operations per share |  |  | $ (0.19) | $ (0.20) | $ (0.14) | $ (0.13) | $ (0.16) | $ (0.17) |  |  |
Diluted income (loss) from continuing operations per share |  |  | $ (0.19) | $ (0.20) | $ (0.14) | $ (0.13) | $ (0.16) | $ (0.17) |  |  |
Continuing Operations As Revised [Member] |  |  |  |  |  |  |  |  |  |  |
Selected Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 156,135 | $ 148,156 | $ 157,947 | $ 157,555 | $ 141,644 | $ 146,714 | $ 149,115 | $ 147,481 |  |  |
Cost of sales (exclusive of depreciation and amortization) | 118,814 | 111,272 | 114,514 | 114,480 | 104,805 | 107,276 | 107,328 | 109,434 |  | 428,843 |
Income (loss) from continuing operations | 53,325 | (3,480) | (26,374) | 1,893 | (2,186) | 944 | (2,467) | (5,781) |  | (9,490) | (24,375)
Income from discontinued operations, net of tax | (2,507) | 129,441 | 5,236 | 5,518 | 3,737 | 3,622 | 4,326 | 44,687 |  |  |
Net income (loss) | 50,818 | 125,961 | (21,138) | 7,411 | 1,551 | 4,566 | 1,859 | (1,313) |  |  |
Comprehensive income (loss) | $ 51,885 | $ 123,129 | $ (11,627) | $ 12,516 | $ (10,302) | $ 5,802 | $ (2,852) | $ 5,302 |  | $ (2,050) | $ (33,026)
Basic income (loss) from continuing operations per share | $ 1.93 | $ (0.13) | $ (0.96) | $ 0.07 | $ (0.08) | $ 0.03 | $ (0.09) | $ (0.22) |  |  |
Basic net income (loss) per share | 1.84 | 4.57 | (0.77) | 0.27 | 0.06 | 0.17 | 0.07 | (0.05) |  | $ 0.25 | $ (0.31)
Diluted income (loss) from continuing operations per share | 1.91 | (0.13) | (0.96) | 0.07 | (0.08) | 0.03 | (0.09) | (0.22) |  |  |
Diluted net income (loss) per share | $ 1.82 | $ 4.57 | $ (0.77) | $ 0.27 | $ 0.06 | $ 0.17 | $ 0.07 | $ (0.05) |  | $ 0.25 | $ (0.31)

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