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CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	8 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Apr. 30, 2018
Common stock, dividends declared (in usd per share)	$ 2.10	$ 2.80	$ 2.10	$ 2.80
Preferred Stock, dividends declared (in usd per share)		$ 1.65625	$ 1.2422
Series B Preferred Stock
Preferred Stock, dividends declared (in usd per share)				0.9938
Series C Preferred Stock
Preferred Stock, dividends declared (in usd per share)	$ 1.2422			$ 1.65625

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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- Definition

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

+ References

No definition available.

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