Risk Management and Use of Derivative Financial Instruments - Information Regarding Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value
Derivative assets, fair value	$ 40,542	$ 29,158
Liability derivatives, fair value	(6,683)	(6,174)
Derivatives Designated as Hedging Instruments
Derivatives, Fair Value
Derivative assets, fair value	35,442	24,150
Liability derivatives, fair value	(6,599)	(6,081)
Derivatives Designated as Hedging Instruments | Foreign currency collars | Other assets, net
Derivatives, Fair Value
Derivative assets, fair value	30,734	14,460
Derivatives Designated as Hedging Instruments | Foreign currency collars | Accounts payable, accrued expenses and other liabilities
Derivatives, Fair Value
Liability derivatives, fair value	0	(1,587)
Derivatives Designated as Hedging Instruments | Foreign currency forward contracts | Other assets, net
Derivatives, Fair Value
Derivative assets, fair value	4,706	9,689
Derivatives Designated as Hedging Instruments | Interest rate caps | Other assets, net
Derivatives, Fair Value
Derivative assets, fair value	2	1
Derivatives Designated as Hedging Instruments | Interest rate swaps | Accounts payable, accrued expenses and other liabilities
Derivatives, Fair Value
Liability derivatives, fair value	(6,599)	(4,494)
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value
Derivative assets, fair value	5,100	5,008
Liability derivatives, fair value	(84)	(93)
Derivatives Not Designated as Hedging Instruments | Interest rate swaps | Other assets, net
Derivatives, Fair Value
Derivative assets, fair value	0	8
Derivatives Not Designated as Hedging Instruments | Interest rate swaps | Accounts payable, accrued expenses and other liabilities
Derivatives, Fair Value
Liability derivatives, fair value	(84)	(93)
Derivatives Not Designated as Hedging Instruments | Stock warrants | Other assets, net
Derivatives, Fair Value
Derivative assets, fair value	$ 5,100	$ 5,000