Variable Interest Entities (VIEs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Current assets	$ 3,678,771	$ 3,862,492
Current liabilities	1,967,527	1,777,113
Revenue	$ 3,790,755	4,641,830	$ 5,318,763
Purple Line Extension Section2 and Section3
Variable Interest Entity [Line Items]
Percent interest in the joint venture	75.00%
Purple Line Extension Section2 and Section3 | O&G
Variable Interest Entity [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners	25.00%
Purple Line Extension Section2 and Section3 | Joint Venture with O&G Industries
Variable Interest Entity [Line Items]
Revenue	$ 2,800,000
Newark Airport Terminal One Design Build Project
Variable Interest Entity [Line Items]
Percent interest in the joint venture	80.00%
Newark Airport Terminal One Design Build Project | Joint Venture with Parsons
Variable Interest Entity [Line Items]
Revenue	$ 1,400,000
Newark Airport Terminal One Design Build Project | Parsons Corporation
Variable Interest Entity [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners	20.00%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Current assets	$ 400	700
Current liabilities		400
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Current assets	527,300	568,200
Current liabilities	567,300	496,900
Noncurrent assets	$ 22,400	$ 3,000