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Investments in Foreign Joint Ventures - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule of Equity Method Investments [Line Items]
Net sales	$ 13,838,000	$ 12,975,000
Affiliated Entity
Schedule of Equity Method Investments [Line Items]
Net sales	$ 0
Bomay
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	40.00%

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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