Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Residential bridge loan. at fair value	$ 64,526	$ 0
Residential bridge loans	$ 106,673	$ 0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	41,794,079	41,919,801
Common stock, shares outstanding	41,794,079	41,919,801
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	100,000,000	100,000,000
Preferred stock, shares outstanding	0	0
Treasury stock, shares held	125,722	0
Residential Whole-Loans, at fair value ($237,423 and $192,136 pledged as collateral, at fair value, respectively)	$ 237,423	$ 192,136
Securitized commercial loan, at fair value	24,876	24,225
Investment related receivable	7,665	33,600
Accrued interest receivable	13,603	18,812
Total Assets	3,886,906	3,156,016
Securitized debt, at fair value	10,945	10,659
Accrued interest payable	8,322	16,041
Accounts payable and accrued expenses	3,118	3,255
Total Liabilities	3,420,868	2,725,534
VIE
Fair value of residential whole-loans pledged as collateral	237,423	192,136
Residential Whole-Loans, at fair value ($237,423 and $192,136 pledged as collateral, at fair value, respectively)	237,423	192,136
Amount of secured collateral	106,673	0
Securitized commercial loan, at fair value	24,876	24,225
Investment related receivable	7,665	1,241
Accrued interest receivable	3,358	1,622
Total Assets	379,995	219,224
Securitized debt, at fair value	10,945	10,659
Accrued interest payable	70	85
Accounts payable and accrued expenses	189	2
Total Liabilities	11,204	10,746
Subtotal Agency MBS
Fair value of mortgage-backed securities pledged as collateral	2,833,595	1,526,584
Non-Agency Mortgage-Backed Securities [Member]
Fair value of mortgage-backed securities pledged as collateral	266,189	667,084
Other securities
Fair value of mortgage-backed securities pledged as collateral	$ 89,823	$ 67,762