Unconsolidated Affiliates Accounted For Under the Equity Method (Transactions with Equity-Method Investees) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unconsolidated Affiliates Accounted For Under the Equity Method [Abstract]
Sales	$ 7,308	$ 4,898	$ 5,378
Purchases	316	15	2,006
Dividends and interest received	154	415	920
Commission and royalties received	363	$ 305	130
Commissions and royalties paid	$ 11		$ 57

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Related Party Transactions From Commissions And Royalties Received Transactions With Related Party

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Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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