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Derivative Instruments and Fair Value Accounting - Recurring Fair Value Measurement (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Level 1 |  |  |
Assets: |  |  |
Cash equivalents |  | $ 84.5 | $ 29.8
Restricted cash |  | 152.7 | 214.7
Total assets |  | 237.2 | 244.5
Level 2 | Other Assets [Member] |  |  |
Assets: |  |  |
Total assets |  | 39.0 | 43.3
Level 2 | Accrued Liabilities [Member] |  |  |
Liabilities |  |  |
Total liabilities |  | 12.4 | 21.6
Level 3 |  |  |
Assets: |  |  |
Total assets |  | 0.0 | 0.0
Liabilities |  |  |
Total liabilities |  | 0.0 | 0.0
Interest Rate Swap [Member] | Level 2 | Other Assets [Member] |  |  |
Assets: |  |  |
Interest rate hedges | [1] | 26.1 | 19.7
Foreign Exchange Forward | Level 2 | Other Assets [Member] |  |  |
Assets: |  |  |
Foreign currency forward contracts | [1] | 0.4 | 2.0
Foreign Exchange Option | Level 2 | Other Assets [Member] |  |  |
Assets: |  |  |
Foreign currency forward contracts | [1] | 0.1 | 0.0
TILC Warehouse Back to Back Swap Agreements | Level 2 | Other Assets [Member] | Not Designated as Hedging Instrument |  |  |
Assets: |  |  |
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value | [1] | 12.4 | 21.6
TILC Back to Back Swap Agreements | Level 2 | Accrued Liabilities [Member] | Not Designated as Hedging Instrument |  |  |
Liabilities |  |  |
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value | [2] | $ 12.4 | $ 21.6
[1] | Included in other assets in our Consolidated Balance Sheets.
[2] | Included in accrued liabilities in our Consolidated Balance Sheets.

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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