Temporary Equity, Equity and Dividends (Schedule of Foreign Currency Translation Reserve) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Temporary Equity, Equity and Dividends
Gains (losses) on intercompany foreign currency transactions of a long-term investment nature	$ 6.0	$ (4.9)	$ (0.1)	$ (4.3)

Amount, after tax, of increase (decrease) in accumulated other comprehensive income (AOCI) from gain (loss) on intra-entity foreign currency transaction that is considered to be long-term-investment with settlement not planned or anticipated in foreseeable future.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 20
-Name Accounting Standards Codification
-Section 35
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482014/830-20-35-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481694/830-30-45-20

Name:	us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration