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Inventories (Tables)
6 Months Ended
Jun. 30, 2023
Inventory Disclosure [Abstract]  
Inventories
Inventories in the accompanying Consolidated Balance Sheets consisted of the following amounts as of June 30, 2023 and December 31, 2022 (in thousands):
June 30,
2023
December 31,
2022
Raw materials and construction materials$88,661 $74,014 
Work in process17,419 11,627 
Inventories$106,080 $85,641