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Financial Instruments: Derivatives and Hedging (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) derivative
Financial Instruments: Derivatives and Hedging |  |  |
Fair value of derivatives in a net liability position | $ 17.5 |  |
Aggregate termination value | 18.3 |  |
Interest Rate Cap |  |  |
Financial Instruments: Derivatives and Hedging |  |  |
Loss from changes in fair value | 10.4 | $ 1.7 |
Derivative, number of instruments sold | derivative |  |  | 0
Interest Expense |  |  |
Financial Instruments: Derivatives and Hedging |  |  |
Loss from changes in fair value | 0.2 | $ 0.3 | $ 0.0
Estimated current balance held in accumulated other comprehensive loss to be reclassified into earnings within the next 12 months | (32.5) |  |
Income Loss From Equity Method Investments |  |  |
Financial Instruments: Derivatives and Hedging |  |  |
Estimated current balance held in accumulated other comprehensive loss to be reclassified into earnings within the next 12 months | $ (7.6) |  |

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- Definition The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480870/815-30-50-1 + 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 The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H + Details
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