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Inventories - Schedule of Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Inventory Disclosure [Abstract]    
Raw materials $ 27,595 $ 25,798
Contracts and other work in process (including certain general stock materials) 124,953 110,609
Finished goods 33,947 40,061
Inventories $ 186,495 $ 176,468