Summary of Significant Accounting Policies (Schedule of Inventory, Current) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Raw materials	$ 107,034	$ 67,775
Work-in-progress	9,755	7,005
Finished goods	21,326	15,768
Total inventories, net	138,115	$ 90,548
Particulate Matter Sensor Gen 1 Assets [Member]
Finished goods	$ 2,283

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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