Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Investments (Details) - USD ($)	3 Months Ended
Investments (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Sep. 08, 2017
Schedule of Equity Method Investments
(Loss) income from equity method investments	$ 1,030,000	$ 0
Distributions received	0	0
Equity method investment	89,345,000		$ 88,315,000
Unrealized gain (loss) on marketable securities	0	$ (16,800,000)
Other Assets
Schedule of Equity Method Investments
Equity method investment	89,300,000		88,300,000
Debt securities	$ 24,200,000		$ 9,900,000
CF Real Estate Finance Holdings, L.P.
Schedule of Equity Method Investments
Equity method investment ownership percentage (in percentage)	27.00%
Equity method investment				$ 100,000,000.0