Consolidated Statements Of Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements Of Equity [Abstract]
Dividends and distributions declared: Common stock, per share	$ 0.78	$ 0.455
Dividends and distributions declared: Common units, per unit	$ 0.00375