Schedule of Aggregate Lease Costs by Lease Classification (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Lease Cost [Line Items]
Lease payments	$ 69.6	$ 69.3
Equipment \| Utilities and Other
Lease Cost [Line Items]
Short term lease payments	1.3	0.5
Real Estate \| Facility Lease Expense
Lease Cost [Line Items]
Variable lease payments	12.7	5.9
Lease payments	$ 0.3	$ 0.3

Lease cost.

No definition available.

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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

+ Details

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