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Derivative Instruments - Additional information (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2023 USD ($) agreement | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) agreement | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) agreement | Dec. 31, 2022 USD ($) | Dec. 31, 2019 USD ($) agreement
Interest Rate Contract |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Borrowings at variable interest rates | $ | $ 730.0 |  | $ 730.0 |  |  | $ 727.0 |
Number of interest rate swap agreements | agreement | 5 |  | 5 |  |  |  |
Number of interest rate swaps entered into | agreement |  |  |  |  | 4 |  |
Derivative, notional amount | $ |  |  |  |  | $ 100.0 |  |
Net fair value of swap asset | $ | $ 25.1 |  | $ 25.1 |  |  | $ 34.8 |
Adjustment to interest expense | $ | $ (6.3) | $ (2.7) | $ (17.4) | $ (3.3) |  |  |
2021 Swap Agreements, Group 1 |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of interest rate swap agreements | agreement | 2 |  | 2 |  |  |  |
Remaining maturity term | 4 months |  | 4 months |  |  |  |
2021 Swap Agreements, Group 2 |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of interest rate swap agreements | agreement | 2 |  | 2 |  |  |  |
Remaining maturity term | 28 months |  | 28 months |  |  |  |
2019 Swap Ageement |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of interest rate swap agreements | agreement |  |  |  |  |  |  | 1
Derivative, notional amount | $ |  |  |  |  |  |  | $ 100.0
Remaining maturity term | 9 months |  | 9 months |  |  |  |

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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + 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 -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
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- Definition Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. + References No definition available. + Details
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- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
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