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Basis of Presentation and Significant Accounting Policies (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Accounting Policies [Abstract]
Allowance for doubtful accounts against contracts receivable	$ 0		$ 0		$ 0
Contract receivables	85,900,000		85,900,000		47,308,000
Contract liabilities, retainage	$ 44,987,000		$ 44,987,000		46,882,000
Percentage of receivables estimated to be collected in next fiscal year	64.00%		64.00%
Contract liability recognized during period	$ 45,315,000		$ 517,579,000
Contract liability revenue recognized		$ 111,887,000		$ 409,257,000
Restricted cash	$ 7,427,000	$ 6,714,000	$ 7,427,000	$ 6,714,000	$ 6,853,000

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Contracts Receivable Retainage, Percentage Estimated To Be Collected In Next Fiscal Year

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Amount of allowance for credit loss on accounts receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (a)
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