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Equity Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Class of Stock [Line Items]
Income attributable to noncontrolling interests	$ (2,533)	$ (3,565)
Series D Cumulative Redeemable Preferred Stock
Class of Stock [Line Items]
Depositary shares outstanding (in shares)	3.0
Depository shares to cumulative redeemable preferred stock ratio	1.00%
Percentage of redeemable preferred stock	6.125%
Cumulative redeemable preferred stock liquidation preference (in usd per share)	$ 25.00
Annual dividend on depositary shares (in usd per share)	$ 1.53125
Series E Cumulative Redeemable Preferred Stock
Class of Stock [Line Items]
Depositary shares outstanding (in shares)	4.4
Depository shares to cumulative redeemable preferred stock ratio	1.00%
Percentage of redeemable preferred stock	6.00%
Cumulative redeemable preferred stock liquidation preference (in usd per share)	$ 25.00
Annual dividend on depositary shares (in usd per share)	$ 1.50

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