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Revenue Recognition (Tables)

3 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue


Table 4.1: Revenue by Contract Type
			For the Three Months Ended
			December 31, 2021						December 31, 2020
			(in thousands)
Performance-based			$	490,956					$	293,960
Cost-plus			340,081						384,483
Fixed price			151,505						120,777
Time and materials			168,334						146,334
Total revenue			$	1,150,876					$	945,554


Table 4.2: Revenue by Customer Type
			For the Three Months Ended
			December 31, 2021						December 31, 2020
			(in thousands)
U.S. state government agencies			$	371,547					$	388,114
United States Federal Government agencies			564,094						385,573
International government agencies			171,375						147,342
Other, including local municipalities and commercial customers			43,860						24,525
Total revenue			$	1,150,876					$	945,554


Table 4.3: Revenue by Geography
			For the Three Months Ended
			December 31, 2021						December 31, 2020
			(in thousands)
United States			$	968,288					$	790,179
United Kingdom			85,807						64,786
Australia			52,814						55,932
Rest of world			43,967						34,657
Total revenue			$	1,150,876					$	945,554