Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Gain (Loss) on foreign currency	$ (4.4)	$ (1.8)
Maximum \| Forward Contracts \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative maturity	3 months
Maximum \| Forward Contracts \| Designated as Hedging Instrument \| Net Investment Hedging
Derivative [Line Items]
Derivative maturity	3 months
Maximum \| Foreign Exchange Options \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative maturity	10 months

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

Name:	us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration