Lease Accounting - Schedule of Minimum Cash Lease Payments (Detail) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Cash paid for amounts included in the measurement of lease liabilities
Cash outflows for operating leases	$ 204.2	$ 203.7
Cash outflows for finance leases - operating activities	5.0	4.2
Cash outflows for finance leases - financing activities	11.5	11.4
Non-cash amount of right-of-use assets obtained in exchange for:
Operating lease liability additions, net	124.1	135.6
Finance lease liability additions, net	$ 0.3	$ 34.2

Cash flow, operating and financing activities, lessee.

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- Definition

Non-cash amount of leased assets obtained in exchange.

+ References

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- Definition

Amount of interest paid on finance lease liability.

+ References

Reference 1: 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

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- Definition

Amount of cash outflow for principal payment on finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
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-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 45
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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
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- Definition

Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

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