Acquisitions and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions					3 Months Ended	6 Months Ended
	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Feb. 29, 2024	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
LIABILITIES
Goodwill	$ 185.6					$ 185.6	$ 187.4	$ 182.0
Management and Financing GmbH
Components of purchase price:
Purchase price	31.0	$ 31.0	$ 30.8	$ 30.8
Adjustments, cash paid					$ 0.2
Settlement of preexisting transactions	3.9	3.9	3.9
Total purchase price	34.9	34.9	34.7
Total adjustments purchase price					0.2
ASSETS
Cash	5.4	5.4	5.3		5.4	5.4
Adjustments, Cash					0.1
Other current assets	8.9	7.3	8.0		7.3	8.9
Adjustments, Other current assets					(0.7)	1.6
Intangible assets subject to amortization				$ 13.8
Other assets	5.7	5.6	5.3		5.6	5.7
Adjustments, Other assets					0.3	0.1
Total identifiable assets acquired	33.8	32.1	32.8		32.1	33.8
Total identifiable assets acquired					(0.7)	1.7
LIABILITIES
Current liabilities	(1.6)	(1.5)	(1.5)		(1.5)	(1.6)
Long-term liabilities	(6.7)	(5.2)	(5.0)		(5.2)	(6.7)
Adjustments, Long-term liabilities					(0.2)	(1.5)
Total identifiable liabilities assumed	(8.3)	(6.7)	(6.5)		(6.7)	(8.3)
Total adjustments, identifiable liabilities assumed					(0.2)	(1.6)
Net assets acquired	25.5	25.4	26.3		25.4	25.5
Total adjustments net assets acquired					(0.9)	0.1
Goodwill	9.4	9.5	8.4		9.5	9.4
Goodwill measurement period adjustments					1.1	(0.1)
Management and Financing GmbH | Customer lists
ASSETS
Intangible assets subject to amortization	13.2	13.2	13.6		13.2	13.2
Adjustments, Intangibles assets					(0.4)
Management and Financing GmbH | Backlog
ASSETS
Intangible assets subject to amortization	$ 0.6	$ 0.6	$ 0.6		$ 0.6	$ 0.6