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Revenue (Summary of Gross Profit from Foreign Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Contract revenues	$ 648,781	$ 726,149	$ 733,601
Costs of contract revenues	(617,608)	(580,879)	(562,373)
GROSS PROFIT	31,173	145,270	171,228
Foreign [Member]
Disaggregation Of Revenue [Line Items]
Contract revenues	149	6,596	25,892
Costs of contract revenues	(341)	(9,281)	(34,529)
GROSS PROFIT	$ (192)	$ (2,685)	$ (8,637)

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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