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Derivatives and Hedging Activity - Summary of Notional and Fair Values of Derivative Instruments (Detail) - USD ($)		Sep. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Notional Amount		$ 1,022,500,000	$ 598,600,000
Derivatives Assets		18,200,000	13,700,000
Derivative Liabilities		9,800,000	69,300,000
Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		1,000,000,000.0	550,000,000.0
Interest Rate Contracts [Member] | Other current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives Assets		5,900,000
Interest Rate Contracts [Member] | Other noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives Assets		5,900,000
Interest Rate Contracts [Member] | Accrued compensation and other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		300,000	54,500,000
Interest Rate Contracts [Member] | Other noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		4,200,000	10,900,000
Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	[1]	22,500,000	48,600,000
Foreign Exchange Contracts [Member] | Other current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives Assets	[1]	4,500,000	5,900,000
Foreign Exchange Contracts [Member] | Other noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives Assets		1,900,000	7,800,000
Foreign Exchange Contracts [Member] | Accrued compensation and other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	[1]	900,000	600,000
Foreign Exchange Contracts [Member] | Other noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		$ 4,400,000	$ 3,300,000
[1] Included within foreign exchange contracts at September 30, 2021 were $365.8 million of call options, offset with $365.8 million of put options, and $12.1 million of buy forwards, offset with $34.6 million of sell forwards.  Included within foreign exchange contracts at December 31, 2020 were $354.7 million of call options, offset with $354.7 million of put options, and $9.0 million of buy forwards, offset with $57.6 million of sell forwards.

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Nominal or face amount used to calculate payments on the derivative asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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