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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Goodwill [Line Items]
Goodwill	$ 287.2		$ 287.2		$ 287.4
Amortization expense	2.2	$ 2.4	4.6	$ 4.9
Other
Goodwill [Line Items]
Goodwill	10.3		10.3		10.3
CA&I
Goodwill [Line Items]
Goodwill	38.0		38.0		$ 38.0
Goodwill (in percent)					10.00%
DWS
Goodwill [Line Items]
Goodwill	$ 140.6		$ 140.6		$ 140.8
Goodwill (in percent)					16.00%

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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