CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement Of Stockholders Equity [Abstract]
Common per share (in dollars per share)	$ 0.15	$ 0.12	$ 0.45	$ 0.32
Preferred per share (in dollars per share)	$ 0.47	$ 0.47	$ 1.41	$ 1.41