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Subsequent Events - Additional Information (Detail) - 5.000% Senior Notes due 2029 - USD ($)		9 Months Ended
	Oct. 14, 2020	Sep. 30, 2020
Subsequent Event [Line Items]
Interest on the notes		payable semi-annually in arrears on April 15 and October 15, commencing on April 15, 2021.
Subsequent Event
Subsequent Event [Line Items]
Issued Senior Notes	$ 475,000,000.0
Debt instrument interest rate	5.00%
Debt instrument maturity date	Apr. 15, 2029
Debt extinguishment charge	$ 453,300,000

X

- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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- Definition

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

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X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

Gross amount of debt extinguished.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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