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Long-term Debt - Textual (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Apr. 30, 2021
Debt Instrument [Line Items]
Loss on early extinguishment of debt	$ 0.0	$ 0.0	$ 1.0	$ 0.0
Senior Notes | 5.125% Senior Notes due 2023
Debt Instrument [Line Items]
Redemption amount					$ 100.0	$ 100.0
Debt instrument interest rate (percent)	5.125%		5.125%
Loss on early extinguishment of debt			$ 1.0

X

- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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