Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

The following table presents our revenue disaggregated by line of business and reportable segment for the three months ended March 31, 2023:


	U.S. Regions		U.S. Federal		Canada		Alternative Fuels		All Other		Total
Project revenue	$	104,320	$	45,549	$	14,911	$	—	$	18,450	$	183,230
O&M revenue	5,529		12,700		10		3,686		333		22,258
Energy assets	13,651		1,076		762		24,653		630		40,772
Integrated-PV	—		—		—		—		11,944		11,944
Other	869		231		2,728		—		9,010		12,838
Total revenues	$	124,369	$	59,556	$	18,411	$	28,339	$	40,367	$	271,042

The following table presents our revenue disaggregated by line of business and reportable segment for the three months ended March 31, 2022:


	U.S. Regions		U.S. Federal		Canada		Alternative Fuels		All Other		Total
Project revenue	$	298,632	$	62,217	$	13,951	$	—	$	18,604	$	393,404
O&M revenue	5,080		12,297		11		2,774		91		20,253
Energy assets	10,018		1,090		761		26,487		72		38,428
Integrated-PV	—		—		—		—		11,356		11,356
Other	790		42		2,449		—		7,280		10,561
Total revenues	$	314,520	$	75,646	$	17,172	$	29,261	$	37,403	$	474,002

The following table presents information related to our revenue recognized over time:


	Three Months Ended March 31,
	2023	2022
Percentage of revenue recognized over time	93%	96%

The remainder of our revenue is for products and services transferred at a point in time, at which point revenue is recognized.

We attribute revenues to customers based on the location of the customer. The following table presents information related to our revenues by geographic area:


	Three Months Ended March 31,
	2023		2022
United States	$	233,084	$	438,391
Canada	17,234		15,988
Other	20,724		19,623
Total revenues	$	271,042	$	474,002

Summary of Contract with Customer, Asset and Liability

The following tables provide information about receivables, contract assets and contract liabilities from contracts with customers:


	March 31, 2023		December 31, 2022
Accounts receivable, net	$	130,940	$	174,009
Accounts receivable retainage, net	$	35,625	$	38,057
Contract Assets:
Costs and estimated earnings in excess of billings	$	497,762	$	576,363
Contract Liabilities:
Billings in excess of cost and estimated earnings	$	39,326	$	34,796
Billings in excess of cost and estimated earnings, non-current (1)	12,510		7,617
Total contract liabilities	$	51,836	$	42,413


	March 31, 2022		December 31, 2021
Accounts receivable, net	$	204,082	$	161,970
Accounts receivable retainage, net	$	40,555	$	43,067
Contract Assets:
Costs and estimated earnings in excess of billings	$	460,240	$	306,172
Contract Liabilities:
Billings in excess of cost and estimated earnings	$	31,729	$	35,918
Billings in excess of cost and estimated earnings, non-current (1)	$	6,322	$	6,481
Total contract liabilities	$	38,051	$	42,399

(1) Performance obligations that are expected to be completed beyond the next twelve months and are included in other liabilities in the condensed consolidated balance sheets.