Financing Activities - Distributions (Details) - $ / shares	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Distributions (Numeric) [Abstract]
Current quarterly common stock dividend (in dollars per share)	$ 0.415	$ 0.415	$ 0.415	$ 1.245	$ 1.245
Annualized current quarterly common stock dividend (in dollars per share)	$ 1.66