Inventories, Net - Summary of Inventories, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Finished goods	$ 11,194	$ 10,647
Work-in-process	18,725	16,927
Raw materials	30,637	24,893
Less: Inventory reserves	(9,689)	(6,597)
Inventories, net	$ 50,867	$ 45,870

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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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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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