Amount of maturities of interest rate swaps.

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

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- Definition

Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

+ References

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- Definition

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.

+ References

No definition available.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

+ References

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- Definition

Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

+ References

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- Definition

Amount of transfers of financial instrument classified as a liability into level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

+ References

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- Definition

Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

+ References

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Period Type:	duration

- Definition

Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

+ References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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Financial instruments and fair value disclosures - Financial instruments recorded at carrying value (Details) - USD ($) $ in Millions	1 Months Ended		9 Months Ended	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Sep. 30, 2021	Dec. 31, 2020	Jun. 15, 2021
Financial instruments and fair value disclosures
Fair value assets level 1 to level 2 transfers			$ 0.0	$ 0.0
Fair value assets level 2 to level 1 transfers			0.0	0.0
Fair value assets transfers into level 3			0.0	0.0
Fair value assets transfers out of level 3			0.0	0.0
Fair value liabilities level 1 to level 2 transfers			0.0	0.0
Fair value liabilities level 2 to level 1 transfers			0.0	0.0
Fair value liabilities transfers into level 3			0.0	0.0
Fair value liabilities transfers out of level 3			0.0	0.0
Carrying value
Financial instruments and fair value disclosures
Long-term debt excludes finance leases, deferred financing and other			$ 2,052.0	$ 2,387.0
Interest rate swaps
Financial instruments and fair value disclosures
Maturities of interest rate swaps		$ 500.0
Derivative, Notional Amount					$ 500.0
Debt Instrument, Face Amount					$ 1,000.0
Derivative, Average Fixed Interest Rate					1.43%
Interest rate swaps \| Forecast
Financial instruments and fair value disclosures
Maturities of interest rate swaps	$ 500.0