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Debt - Senior Unsecured Notes- Additional Information (Details) - USD ($) $ in Millions	Feb. 13, 2020	Sep. 30, 2021
Line of Credit
Debt Instrument [Line Items]
Redemption price, percentage	101.00%
4.000% Senior Notes Due 2028
Debt Instrument [Line Items]
Senior Notes	$ 500.0
Interest rate	4.00%
4.000% Senior Notes Due 2028 | Senior Notes
Debt Instrument [Line Items]
Fair value amount		$ 513.7
3.625% Senior Notes Due 2025
Debt Instrument [Line Items]
Senior Notes	$ 500.0
Interest rate	3.625%
3.625% Senior Notes Due 2025 | Senior Notes
Debt Instrument [Line Items]
Fair value amount		$ 508.6

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Contractual interest rate for funds borrowed, under the debt agreement.

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