Shareholders' Equity - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions	Feb. 03, 2020	Oct. 14, 2019	Jul. 09, 2019	Apr. 03, 2019	Feb. 04, 2019
Dividends Payable [Line Items]
Declaration Date	Feb. 03, 2020	Oct. 14, 2019	Jul. 09, 2019	Apr. 03, 2019	Feb. 04, 2019
Record Date	Feb. 14, 2020	Oct. 25, 2019	Jul. 19, 2019	Apr. 15, 2019	Feb. 15, 2019
Payment Date	Feb. 21, 2020	Nov. 01, 2019	Jul. 26, 2019	Apr. 22, 2019	Feb. 22, 2019
Dividend Paid
Dividends Payable [Line Items]
Distribution Per Share (in dollars per share)	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.48
Aggregate Payment Amount (in millions)	$ 58.2	$ 58.2	$ 58.2	$ 58.2	$ 57.9

Date the declared dividend will be paid, in CCYY-MM-DD format.

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-Name Accounting Standards Codification
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The per share amount of a dividend declared, but not paid, as of the financial reporting date.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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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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