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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2025
Fair Value Disclosures [Abstract] |
Financial Assets And Liabilities Measured At Fair Value | The following table presents information about our financial instruments measured at fair value on a recurring basis as of March 31, 2025 and December 31, 2024. Financial Instruments Measured at Fair Value on a Recurring Basis
| March 31, 2025 |  | December 31, 2024
(in millions) | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total
Other Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred compensation plan investments (1) | $ | 135.0 |  |  | $ | — |  |  | $ | — |  |  | $ | 135.0 |  |  | $ | 134.1 |  |  | $ | — |  |  | $ | — |  |  | $ | 134.1 |
Derivative financial instruments (fair value hedges) | $ | — |  |  | $ | 6.7 |  |  | $ | — |  |  | $ | 6.7 |  |  | $ | — |  |  | $ | 5.3 |  |  | $ | — |  |  | $ | 5.3 |
(1)Approximately $4.7 million and $17.7 million of participant cash was withdrawn from our deferred compensation plan investments during the three months ended March 31, 2025 and the year ended December 31, 2024, respectively.
Fair Value Of Notes Payable | The following table presents the carrying and estimated fair values of our notes payable at March 31, 2025 and December 31, 2024.
| March 31, 2025 |  | December 31, 2024
(in millions) | Carrying Value |  | Estimated Fair Value |  | Carrying Value |  | Estimated Fair Value
Fixed rate notes payable | $ | 2,765.0 |  |  | $ | 2,567.7 |  |  | $ | 2,764.4 |  |  | $ | 2,528.6 |
Floating rate notes payable (1) | 970.7 |  |  | 981.2 |  |  | 721.2 |  |  | 733.0 |
(1) Includes the senior unsecured notes payable and a term loan due in 2026 at March 31, 2025 and December 31, 2024, and includes commercial paper notes at March 31, 2025 and balances outstanding under our unsecured revolving credit facility at December 31, 2024.

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- Definition Fair Value Of Notes Receivable And Notes Payable. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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