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Construction Joint Ventures - SEMA Financials (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule of Equity Method Investments [Line Items]
Operating income	$ 41,090	$ 32,720	$ 69,359	$ 55,475
Net (loss) income	25,961	20,056	$ 45,213	30,611
RLW | Joint Ventures
Schedule of Equity Method Investments [Line Items]
Ownership percentage			51.00%
SEMA Construction Inc | Joint Ventures | Variable Interest Entity, Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Revenues	12,609	9,325	$ 20,462	17,566
Operating income	836	613	1,388	3,140
Net (loss) income	$ 840	$ 615	$ 1,394	$ 3,143

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