BORROWINGS (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 744,847,853		$ 594,877,852	[1]
Repurchase Agreements, Weighted average interest rate	1.28%		0.99%
Agency [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	292,045,000		298,783,000
Repurchase Agreements, Weighted average interest rate	0.36%		0.36%
Non-Agency [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	223,674,000	[2]	200,347,000	[2]
Repurchase Agreements, Weighted average interest rate	1.60%	[2]	1.25%	[2]
Multi-Family [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	131,768,000		45,484,000
Repurchase Agreements, Weighted average interest rate	1.81%		1.85%
Mortgage loans [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 97,360,853		$ 50,263,852
Repurchase Agreements, Weighted average interest rate	2.62%		2.86%

[1] At December 31, 2014, the Company had repurchase agreements of $85,497,000 and $63,796,000 that were linked to Non-Agency RMBS and Multi-Family MBS purchases, respectively, and were accounted for as Linked Transactions, and as such, the linked repurchase agreements are not included in the above table. (See Note 3).

[2] At March 31, 2015 and December 31, 2014, the Company had repurchase agreements of $0 and $85,497,000, respectively, that were linked to Non-Agency RMBS purchases and were accounted for as Linked Transactions, and as such, the linked repurchase agreements are not included in the above table. (See Note 3).