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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, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Lease Cost [Line Items] |  |  |  |
Lease payments |  |  | $ 140.3 | $ 139.1
Equipment | Utilities and Other |  |  |  |
Lease Cost [Line Items] |  |  |  |
Short term lease payments | $ 1.2 | $ 0.9 | 2.5 | 1.4
Real Estate | Facility Lease Expense |  |  |  |
Lease Cost [Line Items] |  |  |  |
Variable lease payments | 20.1 | 12.2 | 32.8 | 18.1
Lease payments | $ 0.3 | $ 0.4 | $ 0.6 | $ 0.7

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 5 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 + Details
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- Definition Amount of cash outflow for short-term lease payment excluded from lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 5 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977 + Details
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