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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Goodwill [Line Items]
Goodwill	$ 248.5		$ 248.5		$ 287.4
Goodwill impairment charge	39.1	$ 0.0	39.1	$ 0.0
Amortization expense	1.5	$ 2.4	6.1	$ 7.3
CA&I
Goodwill [Line Items]
Percentage of fair value in excess of carrying amount (in percent)					10.00%
Other
Goodwill [Line Items]
Goodwill	10.3		10.3		$ 10.3
Goodwill impairment charge			0.0
CA&I
Goodwill [Line Items]
Goodwill	38.0		38.0		38.0
Goodwill impairment charge			0.0
DWS
Goodwill [Line Items]
Goodwill	101.9		101.9		$ 140.8
Goodwill impairment charge	$ 39.1		$ 39.1

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