XML 27 R15.htm IDEA: XBRL DOCUMENT v3.21.2
Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories in the accompanying Consolidated Balance Sheets consisted of the following amounts as of September 30, 2021 and December 31, 2020 (in thousands):
September 30,
2021
December 31,
2020
Raw materials and construction materials$48,653 $42,240 
Work in process15,836 11,098 
Inventories$64,489 $53,338