Significant Accounting Policies and Practices - Narrative (Details) $ / shares in Units, $ in Millions		3 Months Ended
	Oct. 04, 2023 USD ($) $ / shares	Mar. 31, 2024 USD ($) Variable_interest_entity Voting_interest_model_entity Partnership	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Significant Accounting Policies and Practices
Assets related to consolidated VIEs		$ 1,142.4		$ 1,151.9
Liabilities related to consolidated VIEs		881.8		901.2
Restricted cash and cash equivalents		0.2		0.2
Allowance for doubtful accounts included in accounts receivable, net		$ 1.4		2.6
Number of ownership interest entities | Partnership		26
Investments under the equity method of accounting		$ 12.3		12.2
Equity earnings in related investments		0.5	$ 0.7
Liability for payment of minority partner		1.7		1.7
Payment to former minority partner		$ 0.1	$ 2.1
Former minority partner payments term		10 years
Additional payment to former minority partner		$ 4.5
Accrued and Other Current Liabilities
Significant Accounting Policies and Practices
Liability for payment of minority partner		0.4		0.4
Other Noncurrent Liabilities
Significant Accounting Policies and Practices
Liability for payment of minority partner		1.3		1.3
Metropolis Technologies, Inc. | Merger Agreement [Member]
Significant Accounting Policies and Practices
Total enterprise value	$ 1,500.0
Acquistion price of outstanding common stock | $ / shares	$ 54
ProposedMergerRelatedExpensesPaid		$ 2.7
Internal-use Software
Significant Accounting Policies and Practices
Property, Plant and Equipment, Useful Life		3 years
Minimum | Equipment
Significant Accounting Policies and Practices
Property, Plant and Equipment, Useful Life		1 year
Minimum | Unconsolidated Entities
Significant Accounting Policies and Practices
Ownership interests percentage		30.00%
Maximum | Equipment
Significant Accounting Policies and Practices
Property, Plant and Equipment, Useful Life		10 years
Maximum | Unconsolidated Entities
Significant Accounting Policies and Practices
Ownership interests percentage		50.00%
Primary Beneficiary
Significant Accounting Policies and Practices
Assets related to consolidated VIEs		$ 53.0		51.4
Liabilities related to consolidated VIEs		$ 45.3		$ 43.5
Number of ownership interest entities | Variable_interest_entity		20
Not Primary Beneficiary
Significant Accounting Policies and Practices
Number of ownership interest entities | Voting_interest_model_entity		6