Construction Contracts (Tables)

12 Months Ended

Dec. 31, 2022

Contractors [Abstract]

Summary of balances and changes of construction contracts

The following table summarizes the changes to the balances in the Company’s construction contract costs and estimated earnings in excess of billings account and the billings in excess of construction contract costs and estimated earnings account for the years ended December 31, 2022 and 2021 (in thousands):

	Year ended December 31, 2022				Year ended December 31, 2021
	Construction contract costs and estimated earnings in excess of billings		Billings in excess of construction contract costs and estimated earnings		Construction contract costs and estimated earnings in excess of billings		Billings in excess of construction contract costs and estimated earnings
Beginning balance	$	243	$	4,881	$	138	$	6,088
Revenue recognized that was included in the balance at the beginning of the period	—		(4,881)		—		(6,088)
Increases due to new billings, excluding amounts recognized as revenue during the period	—		18,238		—		6,237
Transferred to receivables	(965)		—		(714)		—
Construction contract costs and estimated earnings not billed during the period	342		—		243		—
Changes due to cumulative catch-up adjustment arising from changes in the estimate of the stage of completion	722		(723)		576		(1,356)
Ending balance	$	342	$	17,515	$	243	$	4,881

The Company's balances and changes in construction contract price allocated to unsatisfied performance obligations (backlog) for each of the three years ended December 31, 2022, 2021 and 2020 were as follows (in thousands):

	Years Ended December 31,
	2022		2021		2020
Beginning backlog	$	215,519	$	71,258	$	242,622
New contracts/change orders	685,753		236,077		45,882
Work performed	(235,707)		(91,816)		(217,246)
Ending backlog	$	665,565	$	215,519	$	71,258

Net position of uncompleted construction contracts

The Company’s net position on uncompleted construction contracts comprised the following as of December 31, 2022 and 2021 (in thousands):

	December 31,
	2022		2021
Costs incurred on uncompleted construction contracts	$	571,465	$	379,993
Estimated earnings	22,162		15,115
Billings	(610,800)		(399,746)
Net position	$	(17,173)	$	(4,638)
Construction contract costs and estimated earnings in excess of billings	$	342	$	243
Billings in excess of construction contract costs and estimated earnings	(17,515)		(4,881)
Net position	$	(17,173)	$	(4,638)