Joint Ventures (Assets, Liabilities, and Equity) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Current assets	$ 38,730	$ 40,934
Non-current assets	4,839	4,947
Current liabilities	6,376	9,519
Shareholders' equity	$ 37,193	$ 36,362

Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity.

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