Revenues - (Contract Assets and Liabilities) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Movement in Contract Assets and Liabilities [Roll Forward]
Contract asset, unbilled revenue, beginning balance	$ 3,990
(Decrease)/increase in contract asset, unbilled revenue	(541)
Contract asset, unbilled revenue, ending balance	3,449
Contract liability, accrued customer advances, beginning balance	7,983
(Decrease)/increase in contract liability, accrued customer advances	783
Contract liability, accrued customer advances, ending balance	$ 8,766