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Stock Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Performance Based Stock Options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
All outstanding awards, Intrinsic value, Vested | $ 711 |
Number of Shares, Granted | 0 | 0
Incentive Stock Options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
All outstanding awards, Intrinsic value, Vested | $ 4,757 |
Remaining Weighted Average Period (years) |  | 9 months 18 days
Restricted Stock |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of years of service before cliff vesting | 3 years | 3 years
Weighted Average Grant-Date Fair Value, Granted | $ 19.97 | $ 16.10
Unamortized Stock-Based Compensation | $ 7,956 | $ 5,388
Remaining Weighted Average Period (years) | 2 years | 2 years 6 months
Number of Shares, Granted | 254,972 | 251,475
Restricted Stock | Common Stock |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares issued by equity investee | 254,972 | 251,475
Weighted Average Grant-Date Fair Value, Granted | $ 19.97 | $ 16.10
Unvested Restricted Stock |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Unamortized Stock-Based Compensation | $ 7,956 | $ 5,388
Remaining Weighted Average Period (years) | 2 years | 1 year 4 months 24 days
Performance Based Restricted Shares |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Weighted Average Grant-Date Fair Value, Granted | $ 18.14 | $ 15.40
Unamortized Stock-Based Compensation | $ 3,562 | $ 2,385
Remaining Weighted Average Period (years) | 2 years 4 months 24 days | 2 years 6 months
Number of Shares, Granted | 122,446 | 121,194
Targeted performance percentage |  | 200.00%
Performance Based Restricted Shares | Vested on March 9, 2021 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Cliff vesting date | Mar. 09, 2021 | Feb. 08, 2020
Performance Based Restricted Shares | Performance based stock options based upon financial performance of earnings before interest and tax ("EBIT") and net sales goal for the period commencing January 1, 2018 through December 31, 2020 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Percentage of shares vesting based on Performance | 80.00% |
Earnings before income tax goal weight, percentage | 50.00% |
Net sales goal weight, percentage | 30.00% |
Performance Based Restricted Shares | Performance Based Shares Based Upon AVD Stock Price Appreciation Over the Course of the Period Commencing January 1, 2018 through December 31, 2020 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Earnings before income tax goal weight, percentage | 20.00% |
Performance Based Restricted Shares | Performance based stock options based upon financial performance of earnings before interest and tax ("EBIT") and net sales goal for the period commencing January 1, 2017 through December 31, 2019 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Percentage of shares vesting based on Performance |  | 80.00%
Earnings before income tax goal weight, percentage |  | 50.00%
Net sales goal weight, percentage |  | 30.00%
Performance Based Restricted Shares | Performance Based Shares Based Upon AVD Stock Price Appreciation Over the Course of the Period Commencing January 1, 2017 through December 31, 2019 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Earnings before income tax goal weight, percentage |  | 20.00%
Performance Based Restricted Shares | Performance Based Shares Related to Net Income Weighted at 50%, Net Sales Weighted at 30%, Commencing January 1, 2018 and Ending December 31, 2020 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Weighted Average Grant-Date Fair Value, Granted | $ 19.95 |
Performance Based Restricted Shares | Remaining 20% of Performance Based Shares are Based Upon AVD Stock Price Appreciation for the Period Commencing January 1, 2018 and Ending December 31, 2020 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Weighted Average Grant-Date Fair Value, Granted | $ 16.49 |
Unvested Performance Shares |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Unamortized Stock-Based Compensation | $ 3,562 | $ 2,385
Remaining Weighted Average Period (years) | 2 years 4 months 24 days | 1 year 3 months 18 days

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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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