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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories
Inventories in the accompanying Consolidated Balance Sheets consisted of the following amounts as of March 31, 2023 and December 31, 2022 (in thousands):
March 31,
2023
December 31,
2022
Raw materials and construction materials$85,987 $74,014 
Work in process14,418 11,627 
Inventories$100,405 $85,641