Consolidated Statements of Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stock Transactions, Parenthetical Disclosures [Abstract]
Dividends on common stock, per common share	$ 0.35	$ 0.30	$ 0.70	$ 0.59
Repurchases of shares of common stock (in shares)	0	673,192	873,376	673,192
Series C Preferred Stock
Stock Transactions, Parenthetical Disclosures [Abstract]
Dividends on preferred stock	5.70%	5.70%	5.70%	5.70%