Summary of Significant Accounting Policies (Schedule of Inventory, Current) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Summary of Significant Accounting Policies
Raw materials	$ 66,357	$ 54,382
Work-in-progress	5,582	4,710
Finished goods	21,510	20,186
Total inventories, net	$ 93,449	$ 79,278

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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