Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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 |
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| Quarterly Financial Information (unaudited) | |||||||||||
| Net sales | $ 137,969 | $ 125,339 | $ 139,371 | $ 72,248 | $ 130,143 | $ 123,573 | $ 113,763 | $ 48,789 | $ 474,927 | $ 416,268 | $ 400,408 |
| Gross profit | 44,811 | 36,055 | 45,033 | 17,187 | 41,678 | 36,644 | 41,521 | 14,131 | 143,086 | 133,974 | 132,863 |
| Income before taxes | 21,451 | 15,081 | 22,354 | (5,971) | 17,666 | 11,873 | 25,551 | 8,606 | 52,915 | 63,696 | 66,263 |
| Net income | $ 34,528 | $ 9,327 | $ 14,746 | $ (3,277) | $ 10,101 | $ 7,302 | $ 16,328 | $ 5,278 | $ 54,609 | $ 38,469 | $ 43,572 |
| Basic earnings (loss) per common share (in dollars per share) | $ 1.51 | $ 0.41 | $ 0.64 | $ (0.14) | $ 0.44 | $ 0.32 | $ 0.72 | $ 0.23 | $ 2.42 | $ 1.71 | $ 1.95 |
| Earnings (loss) per common share assuming dilution (in dollars per share) | 1.50 | 0.40 | 0.64 | (0.14) | 0.44 | 0.32 | 0.71 | 0.23 | $ 2.40 | $ 1.70 | $ 1.94 |
| Cash dividends paid per share (in dollars per share) | $ 0.24 | $ 0.24 | $ 0.24 | $ 0.24 | $ 0.24 | $ 0.24 | $ 0.24 | $ 0.24 | |||
| Gain (Loss) Related to Litigation Settlement | $ 10,050 | $ 1,275 | $ 10,050 | ||||||||
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- Definition Net Income after preferred stock dividends and other adjustments, and after earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method. No definition available.
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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/presentationRef
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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/presentationRef
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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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