Investments (Unconsolidated Entities) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Investments
Sales	$ 57,042	$ 89,789
Total expenses	52,159	80,662
Net income	$ 4,883	$ 9,127

The amount of the cost of sales reported by an equity method investment of the entity.

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The amount of net income (loss) reported by an equity method investment of the entity.

+ References

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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