Consolidated Statements of Equity (Parentheticals) - $ / shares	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2017	Aug. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Common Stock Dividends		$ 1.14	$ 0.26
EID [Member]
Common Stock Dividends		1.14
$3.50 Series Preferred Stock [Member] | EID [Member]
Preferred Stock, Dividends Per Share	$ 0.875	2.625	3.50	$ 3.50
$4.50 Series Preferred Stock [Member] | EID [Member]
Preferred Stock, Dividends Per Share	$ 1.125	$ 3.375	$ 4.50	$ 4.50