Acquisitions - Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Feb. 29, 2024	Mar. 31, 2024	Dec. 31, 2023
LIABILITIES
Goodwill		$ 192.2	$ 187.4
Management and Financing GmbH
Components of purchase price:
Cash paid	$ 30.8
Settlement of preexisting transactions	3.9
Total purchase price	34.7
ASSETS
Cash	5.3
Other current assets	8.0
Intangible assets subject to amortization	14.2
Other assets	5.3
Total identifiable assets acquired	32.8
LIABILITIES
Current liabilities	(1.5)
Long-term liabilities	(5.0)
Total identifiable liabilities assumed	(6.5)
Net assets acquired	26.3
Goodwill	8.4
Management and Financing GmbH | Customer lists
ASSETS
Intangible assets subject to amortization	13.6
Management and Financing GmbH | Backlog
ASSETS
Intangible assets subject to amortization	$ 0.6