Lease Accounting - Schedule of Minimum Cash Lease Payments (Detail) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Cash paid for amounts included in the measurement of lease liabilities
Cash outflows for operating leases	$ 135.4	$ 136.1
Cash outflows for finance leases - operating activities	3.4	2.9
Cash outflows for finance leases - financing activities	7.6	7.5
Non-cash amount of right-of-use assets obtained in exchange for:
Operating lease liability additions, net	103.1	110.5
Finance lease liability additions, net	$ 0.0	$ 27.9

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 45
-Paragraph 5
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-5

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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
-Subparagraph (g)(1)
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-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-5

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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)
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-URI https://asc.fasb.org/1943274/2147479041/842-20-45-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 4
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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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-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

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-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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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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