Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2023

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2023		2022		2023		2022
Commercial
Revenues	$	782.4	$	900.0	$	2,425.8	$	2,583.5
Gross profit	254.2		297.8		777.5		852.1
Operating income	91.4		108.7		267.0		319.6
Depreciation	5.0		5.0		14.5		12.0
Amortization	8.6		9.9		26.1		21.1
Federal Government
Revenues	$	334.4	$	297.9	$	950.7	$	847.2
Gross profit	68.2		61.1		197.6		177.4
Operating income	27.2		23.0		74.9		66.4
Depreciation	1.4		1.3		4.3		4.2
Amortization	9.2		8.0		27.7		24.2
Consolidated
Revenues	$	1,116.8	$	1,197.9	$	3,376.5	$	3,430.7
Gross profit	322.4		358.9		975.1		1,029.5
Operating income	98.6		108.4		280.7		319.1
Depreciation	7.0		7.2		20.8		19.5
Amortization	17.8		17.9		53.8		45.3
_______
Consolidated operating income includes corporate operating expenses, which are not allocated to the segments. These include stock-based compensation expense, depreciation expense, compensation for corporate employees, acquisition, integration and strategic planning expenses, and public company expenses.

Disaggregation of Revenue

Revenues by segment and by type are as follows (in millions):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2023		2022		2023		2022
Commercial
Assignment	$	508.2	$	631.4	$	1,598.8	$	1,888.0
Consulting	274.2		268.6		827.0		695.5
	782.4		900.0		2,425.8		2,583.5
Federal Government
Firm-fixed-price	107.3		91.7		297.9		242.9
Time and materials	126.8		113.7		377.9		338.5
Cost reimbursable	100.3		92.5		274.9		265.8
	334.4		297.9		950.7		847.2
Consolidated	$	1,116.8	$	1,197.9	$	3,376.5	$	3,430.7

Revenue from External Customers by Products and Services

Federal Government Segment revenues by customer type are as follows (in millions):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2023		2022		2023		2022
Department of Defense and Intelligence Agencies	$	164.8	$	165.5	$	452.7	$	458.4
Federal Civilian	159.5		124.8		468.3		361.9
Other	10.1		7.6		29.7		26.9
	$	334.4	$	297.9	$	950.7	$	847.2