Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Amount, after 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
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Derivative Instruments and Hedging Activities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	$ (0.2)	$ (0.1)	$ (0.6)	$ (0.5)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	11.4	$ 12.3	11.4	$ 12.3	$ 11.6		$ 12.4	$ 12.8
Interest Rate Contract [Member]
Derivative [Line Items]
Portion expected to be reclassified to earnings in the next twelve months	$ (0.8)		$ (0.8)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax						$ 12.0