Subsequent Events (Details) - $ / shares		3 Months Ended
	Aug. 05, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Subsequent Events
Quarterly cash dividends on common stock		$ 0.15	$ 0.15	$ 0.13	$ 0.13
Subsequent Event | Class A Common Stock
Subsequent Events
Quarterly cash dividends on common stock	$ 0.15
Subsequent Event | Series A Preferred Stock
Subsequent Events
Dividend declared per share of Series A preferred stock	$ 0.384375