Agreements and Transactions with Related Parties - Narratives (Details)		3 Months Ended		6 Months Ended
	Apr. 13, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) investment shares	Apr. 12, 2020 shares	Jun. 30, 2020 USD ($) investment shares	Jul. 31, 2020 USD ($)	Feb. 20, 2020 USD ($)	Feb. 19, 2020 USD ($)	Dec. 31, 2019 USD ($) shares
Related Party Transaction
Transition services agreement term	12 months
Preferred stock, shares issued (shares) | shares		0		0				0
Disposition of goodwill				$ 34,273,000
Equity investments		$ 284,643,000		$ 284,643,000				$ 324,004,000
Distributions Of Available Cash and Deferred Revenue Earned
Percentage of available cash distribution to advisor				10.00%
Accrued interest								1,500,000
Maximum borrowing capacity		$ 2,750,000,000		$ 2,750,000,000		$ 2,100,000,000	$ 1,850,000,000
Other Transactions with Affiliates
Jointly owned investments | investment		9		9
Jointly owned investment, accounted for under the equity method investments | investment		8		8
CWI 2 Class A Common Stock
Related Party Transaction
Class of warrant or right, number of securities called by warrants or rights (in shares) | shares		0.9106		0.9106
WLT
Related Party Transaction
Shares owned (shares) | shares	5,531,025
CWI 1
Related Party Transaction
Shares owned (shares) | shares			6,074,046
CWI 1 | Affiliated Entity
Distributions Of Available Cash and Deferred Revenue Earned
Percentage of available cash distribution to advisor			20.00%
CWI 2 | Affiliated Entity
Distributions Of Available Cash and Deferred Revenue Earned
Percentage of available cash distribution to advisor			25.00%
CESH | Affiliated Entity
Distributions Of Available Cash and Deferred Revenue Earned
Loans receivable, related party								46,300,000
Maximum borrowing capacity		$ 65,000,000.0		$ 65,000,000.0
CPA:18 – Global | Subsequent Events | Affiliated Entity
Distributions Of Available Cash and Deferred Revenue Earned
Maximum borrowing capacity					$ 25,000,000.0
Investment Management
Related Party Transaction
Disposition of goodwill				34,273,000
CWI 2 | Affiliated Entity
Related Party Transaction
Equity investments		0		0				$ 33,669,000
WLT | Preferred Stock | Level 3
Related Party Transaction
Equity method investment fair value		46,300,000		46,300,000
Affiliated Entity | CWI 1 and CWI 2
Related Party Transaction
Gain (loss) on sale of equity investments		9,900,000
Equity investments	$ 500,000
Affiliated Entity | Common Stock | WLT
Related Party Transaction
Shares owned (shares) | shares	12,208,243
Equity investments		49,200,000		$ 49,200,000
Affiliated Entity | Common Class A | CWI 2
Related Party Transaction
Shares owned (shares) | shares			3,836,669
Affiliated Entity | CWI 2 | Preferred Stock
Related Party Transaction
Equity method investment fair value	$ 46,300,000
Affiliated Entity | CWI 2 | Common Stock
Related Party Transaction
Equity method investment fair value	$ 11,600,000
CWI 2 | Affiliated Entity
Related Party Transaction
Preferred stock, shares issued (shares) | shares	1,300,000
Preferred stock liquidation preference (usd per share) | $ / shares	$ 50.00
Common stock, shares issued (in shares) | shares	2,840,549
Gain (loss) on sale of equity investments		$ 33,000,000.0
Preferred stock dividend rate (percentage)				5.00%