Quarterly report pursuant to Section 13 or 15(d)

Revenue from Contracts with Customers - Contract Balances (Details)

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Revenue from Contracts with Customers - Contract Balances (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]        
Accounts receivable, net $ 204,082 [1] $ 161,970 [1] $ 113,095 $ 125,010
Accounts receivable retainage, net 40,555 43,067 32,071 30,189
Contract Assets:        
Costs and estimated earnings in excess of billings 460,240 [1] 306,172 [1] 179,474 185,960
Contract Liabilities:        
Billings in excess of cost and estimated earnings 31,729 35,918 30,211 33,984
Billings in excess of cost and estimated earnings, non-current 6,322 6,481 6,590 6,631
Total contract liabilities $ 38,051 $ 42,399 $ 36,801 $ 40,615
[1] Includes restricted assets of consolidated variable interest entities (“VIEs”) at March 31, 2022 and December 31, 2021 of $136,315 and $124,454, respectively. Includes non-recourse liabilities of consolidated VIEs at March 31, 2022 and December 31, 2021 of $30,790 and $31,125, respectively. See Note 12.