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EQUITY STRUCTURE AND ACCOUNTS - Dividends Declared (Details) - $ / shares			3 Months Ended		12 Months Ended
	Feb. 27, 2020	Feb. 27, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Class A Common Stock
Class of Stock [Line Items]
Dividends per share of Class A common stock (in dollars per share)	$ 0.340	$ 0.340	$ 0.340	$ 0.340	$ 0.340

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+ References

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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=27012166&loc=d3e187085-122770

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