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Inventories - Components (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]            
Raw materials $ 156,265   $ 124,480      
Work in process 3,534   3,049      
Finished goods 6,073   4,528      
Total, gross 165,872   132,057      
Less: Allowance for excess and obsolete inventories (1,871) $ (2,007) (1,787) $ (2,726) $ (2,304) $ (3,261)
Total, net $ 164,001   $ 130,270