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Revenue Recognition (Revenue by Market Group) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 1,105,432	$ 1,058,105	$ 927,740
Social Sector
Disaggregation of Revenue [Line Items]
Revenue	954,845	907,197	889,755
Corporate Sector
Disaggregation of Revenue [Line Items]
Revenue	$ 150,587	$ 150,908	$ 37,985

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