Dividends and Distributions - Distribution Type (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Common Shares
Ordinary income	35.00%	83.00%	66.00%
Capital gains	0.00%	0.00%	0.00%
Return of capital	65.00%	17.00%	34.00%
Total	100.00%	100.00%	100.00%
Preferred Shares
Ordinary income			100.00%
Capital gains			0.00%
Return of capital			0.00%
Total			100.00%