Aggregate dividends declared during the period for each share of common stock outstanding.

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Face amount or stated value per share of common stock.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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Describes the declaration as being a special dividend (over and above the normal dividend); as the annual, semi-annual, quarterly dividend, or other normal periodic dividend; or as some other type of dividend.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Stockholders equity note.

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Stockholders' Equity - Additional Information (Detail) - USD ($)		1 Months Ended	3 Months Ended
	Mar. 15, 2020	Feb. 29, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2018
Stockholders Equity Note [Line Items]
Remaining authorized repurchases under share repurchase program			$ 582,900,000
Par value of common stock			$ 1.00
Dividends paid			$ 215,013,000
Dividend Declared in 2020
Stockholders Equity Note [Line Items]
Special dividend declared per share		$ 15.00
Dividend record date		Mar. 05, 2020
Dividend payable nature			special
Dividends paid	$ 215,000,000.0
Stock Repurchase Programs 2019
Stockholders Equity Note [Line Items]
Aggregate amount of common stock authorized for repurchase				$ 500,000,000.0
Stock Repurchase Programs 2018
Stockholders Equity Note [Line Items]
Aggregate amount of common stock authorized for repurchase					$ 400,000,000.0