Derivatives and Hedging Activities - Pre-tax Effect of Derivatives on AOCI and Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Amortization of accumulated OCI related	$ 5.3	$ 5.3	$ 10.7	$ 10.6
OCI, Cash Flow Hedge, Reclassification for Discontinuance, Statement of Income or Comprehensive Income [Extensible Enumeration]			Interest expense, net
Derivatives not designated as hedging instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Loss recognized in income	0.0	0.0	$ 0.6	0.1
Derivatives in cash flow hedging relationships
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gain recognized in OCI (effective portion)	21.9	12.7	16.7	63.1
Loss (gain) reclassified from accumulated OCI into income (effective portion)	$ (8.0)	$ 6.3	$ (14.1)	$ 12.7

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
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-Publisher FASB
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Indicates line item in statement of income or comprehensive income that includes reclassification from accumulated other comprehensive income (AOCI) for gain (loss) recognized in other comprehensive income (OCI) from discontinuance of cash flow hedge included in assessment of hedge effectiveness.

+ References

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax, of reclassification from accumulated other comprehensive income (AOCI) for gain (loss) from discontinuance of cash flow hedge included in assessment of hedge effectiveness.

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