Revenue - Contracts and Liabilities (Details) $ in Millions	9 Months Ended
Sep. 30, 2023 USD ($)
Contract With Customer, Asset [Roll Forward]
Contract assets, December 31, 2022	$ 16.3
Contract assets, September 30, 2023	19.9
Change in contract assets - increase (decrease)	3.6
Contract With Customer, Liability [Roll Forward]
Deferred income, December 31, 2022	(68.2)
Deferred income, September 30, 2023	(50.0)
Change in deferred income - decrease (increase)	$ 18.2

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-8

Name:	us-gaap_ContractWithCustomerAssetNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant