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Revenue Recognition (Tables)

12 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue


Table 4.1: Revenue by Service Type
			For the Year Ended September 30,
			2023						%						2022						%						2021						%
			(dollars in thousands)
Program Operations			$	2,607,263					53.2		%				$	2,596,801					56.1		%				$	2,755,820					64.8		%
Clinical Services			1,486,040						30.3		%				1,176,081						25.4		%				699,424						16.4		%
Employment & Other			520,981						10.6		%				551,755						11.9		%				463,695						10.9		%
Technology Solutions			290,444						5.9		%				306,381						6.6		%				335,546						7.9		%
Total revenue			$	4,904,728											$	4,631,018											$	4,254,485


Table 4.2: Revenue by Contract Type
			For the Year Ended September 30,
			2023						%						2022						%						2021						%
			(dollars in thousands)
Performance-based			$	2,425,597					49.5		%				$	2,091,608					45.2		%				$	1,416,562					33.3		%
Cost-plus			1,238,574						25.3		%				1,248,759						27.0		%				1,237,995						29.1		%
Fixed price			717,167						14.6		%				627,402						13.5		%				553,645						13.0		%
Time and materials			523,390						10.7		%				663,249						14.3		%				1,046,283						24.6		%
Total revenue			$	4,904,728											$	4,631,018											$	4,254,485


Table 4.3: Revenue by Customer Type
			For the Year Ended September 30,
			2023						%						2022						%						2021						%
			(dollars in thousands)
U. S. federal government agencies			$	2,344,863					47.8		%				$	2,189,303					47.3		%				$	1,805,131					42.4		%
U.S. state government agencies			1,800,814						36.7		%				1,605,457						34.7		%				1,654,555						38.9		%
International government agencies			663,044						13.5		%				722,192						15.6		%				663,180						15.6		%
Other, including local municipalities and commercial customers			96,007						2.0		%				114,066						2.5		%				131,619						3.1		%
Total revenue			$	4,904,728											$	4,631,018											$	4,254,485


Table 4.4: Effect of Changes in Contract Estimates
			For the Year Ended September 30,
			2023						2022
			(in thousands, except per share data)
Benefit to/(reduction of) revenue recognized due to changes in contract estimates			$	(13,346)					$	(2,500)
Benefit to/(reduction of) diluted earnings per share recognized due to changes in contract estimates			$	(0.16)					$	(0.03)