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

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-Topic 230
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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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Shareholders' Equity - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 06, 2020	Jul. 07, 2020	Apr. 06, 2020	Feb. 03, 2020	Oct. 14, 2019	Jul. 09, 2019	Apr. 03, 2019	Feb. 04, 2019	Oct. 15, 2018	Jul. 10, 2018	Apr. 11, 2018	Feb. 05, 2018
Dividends Payable [Line Items]
Dividends Payable, Date Declared	Oct. 06, 2020	Jul. 07, 2020	Apr. 06, 2020	Feb. 03, 2020	Oct. 14, 2019	Jul. 09, 2019	Apr. 03, 2019	Feb. 04, 2019	Oct. 15, 2018	Jul. 10, 2018	Apr. 11, 2018	Feb. 05, 2018
Dividends payable, date to be paid	Oct. 23, 2020	Jul. 24, 2020	Apr. 24, 2020	Feb. 21, 2020	Nov. 01, 2019	Jul. 26, 2019	Apr. 22, 2019	Feb. 22, 2019	Nov. 02, 2018	Jul. 27, 2018	May 03, 2018	Feb. 27, 2018
Dividends payable, date of record	Oct. 16, 2020	Jul. 17, 2020	Apr. 17, 2020	Feb. 14, 2020	Oct. 25, 2019	Jul. 19, 2019	Apr. 15, 2019	Feb. 15, 2019	Oct. 26, 2018	Jul. 20, 2018	Apr. 23, 2018	Feb. 16, 2018
Dividend Paid
Dividends Payable [Line Items]
Distribution Per Share (in dollars per share)	$ 0.34	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.47	$ 0.47	$ 0.47	$ 0.47
Aggregate Payment Amount	$ 41.5	$ 58.5	$ 58.5	$ 58.2	$ 58.2	$ 58.2	$ 58.2	$ 57.9	$ 57.2	$ 57.2	$ 57.4	$ 58.3
Dividend Paid \| Qualified Shareholder
Dividends Payable [Line Items]
Distribution Per Share (in dollars per share)									$ 0.046117	$ 0.046117	$ 0.046117	$ 0.046117
Dividend Paid \| Non Qualified Shareholder
Dividends Payable [Line Items]
Distribution Per Share (in dollars per share)	$ 0.1881193	$ 0.2655802	$ 0.2655802	$ 0.2655802	$ 0.2759699	$ 0.2759699	$ 0.2759699	$ 0.2759699	0.209022	0.209022	0.209022	0.209022
Dividend Paid \| Return Of Capital
Dividends Payable [Line Items]
Distribution Per Share (in dollars per share)	$ 0.1518807	$ 0.2144198	$ 0.2144198	$ 0.2144198	$ 0.2040301	$ 0.2040301	$ 0.2040301	$ 0.2040301	$ 0.2148609	$ 0.2148609	$ 0.2148609	$ 0.2148609