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Stock Based Compensation - Additional Information (Detail) - USD ($)	1 Months Ended		3 Months Ended
	Apr. 30, 2017	Feb. 28, 2017	Mar. 31, 2020	Mar. 31, 2019
Performance Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted			0	0
Common Stock Grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted			$ 18.63	$ 17.34
Unamortized Stock-Based Compensation			$ 4,555,000	$ 9,238,000
Remaining Weighted Average Period (years)			1 year 6 months	2 years 4 months 24 days
Number of Shares, Granted			4,185	290,679
Common Stock Grants | Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of service before cliff vesting			6 months	3 years
Common Stock Grants | Employees | First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares expected to vest			1,000
Common Stock Grants | Employees | Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares expected to vest			685
Common Stock Grants | Employees | Six Month Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares expected to vest			500
Common Stock Grants | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted			$ 18.63	$ 17.34
Common Stock Grants | Common Stock | Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued by equity investee			4,185	290,679
Number of shares expected to vest			2,000
Unvested Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized Stock-Based Compensation			$ 4,555,000
Remaining Weighted Average Period (years)			1 year 6 months
Performance Based Restricted Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted				$ 16.47
Unamortized Stock-Based Compensation			$ 2,288,000	$ 4,524,000
Remaining Weighted Average Period (years)			1 year 8 months 12 days	2 years 4 months 24 days
Number of Shares, Granted			0	137,557
Targeted performance percentage			200.00%	200.00%
Target performance percentage to meet performance incentive stock options based on market	125.00%	50.00%
Additional expenses recognized			$ 0
Number of Share, Additional granted based on performance			76,445	41,568
Performance Based Restricted Shares | Vested on March 9, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cliff vesting date				Mar. 28, 2022
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, 2019 through December 31, 2021
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, 2019 through December 31, 2021
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, 2019 and Ending December 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted				$ 17.34
Performance Based Restricted Shares | Remaining 20% of Performance Based Shares are Based Upon AVD Stock Price Appreciation for the Period Commencing January 1, 2019 and Ending December 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted				$ 13.01
Unvested Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized Stock-Based Compensation			$ 2,288,000
Remaining Weighted Average Period (years)			1 year 8 months 12 days

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