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Lease Accounting - Schedule of Aggregate Lease Costs by Lease Classification (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Lease Cost [Line Items] |  |  |  |
Lease payments |  |  | $ 136.1 | $ 140.3
Equipment | Utilities and Other |  |  |  |
Lease Cost [Line Items] |  |  |  |
Short term lease payments | $ 0.7 | $ 1.2 | 1.4 | 2.5
Real Estate | Facility Lease Expense |  |  |  |
Lease Cost [Line Items] |  |  |  |
Variable lease payments | 16.5 | 20.1 | 28.7 | 32.8
Lease payments | $ 0.3 | $ 0.3 | $ 0.6 | $ 0.6

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- Definition Amount cash outflow for variable lease payments, net of lease credits and abatements, excluded from lease liability. + References No definition available. + Details
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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