Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Components of inventory
Raw materials and parts	$ 199,933	$ 184,624
Work-in-progress	84,081	76,019
Finished goods	162,476	153,900
Total Inventory, Net	$ 446,490	$ 414,543

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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