Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Interest income	$ 47,854	$ 46,511
Revenues	24,991	26,145
Interest expense	24,492	20,366
Net income	(7,400)	19,890
Total assets	3,501,885	3,540,620	$ 3,540,620
Real Estate Debt and Other Real Estate Investments
Segment Reporting Information [Line Items]
Interest income	43,369	43,634
Interest expense	21,708	18,743
Net income	(1,183)	14,725
Total assets	2,775,939	2,964,233
Real Estate Securities
Segment Reporting Information [Line Items]
Interest income	3,295	507
Interest expense	1,807	498
Net income	1,050	9
Total assets	519,916	388,170
TRS
Segment Reporting Information [Line Items]
Interest income	1,190	2,370
Interest expense	693	1,125
Net income	(5,982)	5,156
Total assets	132,694	131,193
Real Estate Owned
Segment Reporting Information [Line Items]
Interest income	0	0
Interest expense	284	0
Net income	(1,285)	0
Total assets	73,336	57,024
Revenue from real estate owned
Segment Reporting Information [Line Items]
Revenues	1,629	0
Revenue from real estate owned \| Real Estate Debt and Other Real Estate Investments
Segment Reporting Information [Line Items]
Revenues	0	0
Revenue from real estate owned \| Real Estate Securities
Segment Reporting Information [Line Items]
Revenues	0	0
Revenue from real estate owned \| TRS
Segment Reporting Information [Line Items]
Revenues	0	0
Revenue from real estate owned \| Real Estate Owned
Segment Reporting Information [Line Items]
Revenues	$ 1,629	$ 0

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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