Selected Quarterly Financial Information - Summarizes Selected Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2019 |
Sep. 28, 2019 |
Jun. 29, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 29, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Sales | $ 198,412 | $ 177,018 | $ 189,098 | $ 208,174 | $ 202,917 | $ 212,674 | $ 208,606 | $ 179,059 | $ 772,702 | $ 803,256 | $ 624,464 |
| Gross Profit (sales less cost of products sold) | 26,908 | 36,794 | 40,363 | 52,077 | 47,672 | 46,320 | 49,572 | 37,132 | 156,142 | 180,696 | 137,113 |
| Impairment Loss | 11,083 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11,083 | 0 | 16,237 |
| Income Before Income Taxes | (43,282) | 1,760 | 8,830 | 100,995 | 15,594 | 15,580 | 17,182 | 3,926 | |||
| Net Income | $ (34,065) | $ 1,210 | $ 6,726 | $ 78,146 | $ 12,485 | $ 16,999 | $ 14,025 | $ 3,294 | $ 52,017 | $ 46,803 | $ 19,679 |
| Basic earnings per share (in usd per share) | $ (1.10) | $ 0.04 | $ 0.21 | $ 2.40 | $ 0.38 | $ 0.53 | $ 0.43 | $ 0.10 | $ 1.62 | $ 1.45 | $ 0.60 |
| Diluted earnings per share (in usd per share) | $ (1.10) | $ 0.04 | $ 0.20 | $ 2.35 | $ 0.37 | $ 0.52 | $ 0.42 | $ 0.10 | $ 1.60 | $ 1.41 | $ 0.58 |
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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