Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investment property, net	$ 7,288,401	$ 7,232,620
Other assets	219,176	219,896
Secured debt	3,273,808	3,180,592
Other liabilities	$ 82,341	$ 81,289
Shares outstanding		488,958
Common Stock, Par Value	$ 0.01	$ 0.01
Common Stock, Shares Authorized	180,000,000	180,000,000
Common Stock, Shares Issued	90,690,000	86,357,000
Common Stock, Shares Outstanding	93,327,000	93,180,000
Series A-4 Preferred Stock
Series A-4 Preferred Stock, Par Value	$ 0.01	$ 0.01
Series A-4 Preferred Stock, Shares Issued	0	0
Variable Interest Entity, Primary Beneficiary [Member]
Investment property, net	$ 350,019	$ 344,300
Other assets	23,751	23,894
Secured debt	46,727	46,993
Preferred OP units - mandatorily redeemable	35,249	35,249
Other liabilities	$ 19,604	$ 13,631