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Revenue Recognition (Disaggregation of Revenue by Market Group) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 261,753	$ 257,124
Social Sector
Disaggregation of Revenue [Line Items]
Revenue	224,897	219,995
Corporate Sector
Disaggregation of Revenue [Line Items]
Revenue	$ 36,856	$ 37,129

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