Segment Information - Summary of Operations by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Gross profit	$ 115.8	$ 148.1	$ 274.8	$ 235.5
Operating Segments
Segment Reporting Information [Line Items]
Customer revenue	402.2	443.1	847.4	817.6
Gross profit	113.6	146.6	271.1	232.4
Operating Segments | DWS
Segment Reporting Information [Line Items]
Customer revenue	135.0	127.2	266.0	252.0
Gross profit	18.4	16.5	34.0	32.5
Operating Segments | CA&I
Segment Reporting Information [Line Items]
Customer revenue	132.6	130.1	258.6	259.2
Gross profit	22.4	7.1	38.8	14.1
Operating Segments | ECS
Segment Reporting Information [Line Items]
Customer revenue	134.6	185.8	322.8	306.4
Gross profit	$ 72.8	$ 123.0	$ 198.3	$ 185.8