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Lease Accounting - Schedule of Aggregate Lease Costs by Lease Classification (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Lease Cost [Line Items] |  |  |
Total operating lease costs |  | $ 80.7 | $ 81.4
Total finance lease costs |  | 5.3 | 4.5
Depreciation and Amortization |  |  |
Lease Cost [Line Items] |  |  |
Amortization of leased assets |  | 3.6 | 3.1
Interest Expense |  |  |
Lease Cost [Line Items] |  |  |
Interest on lease liabilities |  | 1.7 | 1.4
Equipment | Utilities and Other |  |  |
Lease Cost [Line Items] |  |  |
Total operating lease costs | [1] | 0.9 | 0.8
Real Estate | Facility Lease Expense |  |  |
Lease Cost [Line Items] |  |  |
Total operating lease costs | [1] | $ 79.8 | $ 80.6
[1] | Includes short-term lease payments, variable lease payments and office and equipment lease payments reflected in general and administrative expense as set forth in the following table for the periods presented:

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