BORROWINGS (Details 2) - USD ($)		6 Months Ended	12 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Repurchase Agreement Counterparty [Line Items]
Repurchase Agreement Counterparties, Amount Outstanding		$ 541,041,099	$ 594,877,852	[1]
Repurchase Agreement Counterparties, Percent of total amount outstanding		100.00%	100.00%
Repurchase Agreement Counterparties, Weighted average days to maturity		27 days	36 days
Repurchase Agreement Counterparties, Market Value of collateral held		$ 682,600,185	$ 695,421,955
North America [Member]
Repurchase Agreement Counterparty [Line Items]
Repurchase Agreement Counterparties, Amount Outstanding		$ 321,243,000	$ 388,138,820	[1]
Repurchase Agreement Counterparties, Percent of total amount outstanding		59.37%	65.25%
Repurchase Agreement Counterparties, Weighted average days to maturity		14 days	19 days
Repurchase Agreement Counterparties, Market Value of collateral held		$ 419,513,822	$ 463,615,686
Europe [Member]
Repurchase Agreement Counterparty [Line Items]
Repurchase Agreement Counterparties, Amount Outstanding	[2]	$ 116,222,099	$ 93,350,032	[1]
Repurchase Agreement Counterparties, Percent of total amount outstanding	[2]	21.48%	15.69%
Repurchase Agreement Counterparties, Weighted average days to maturity	[2]	77 days	21 days
Repurchase Agreement Counterparties, Market Value of collateral held	[2]	$ 145,849,613	$ 113,286,452
Asia [Member]
Repurchase Agreement Counterparty [Line Items]
Repurchase Agreement Counterparties, Amount Outstanding	[2]	$ 103,576,000	$ 113,389,000	[1]
Repurchase Agreement Counterparties, Percent of total amount outstanding	[2]	19.14%	19.06%
Repurchase Agreement Counterparties, Weighted average days to maturity	[2]	11 days	122 days
Repurchase Agreement Counterparties, Market Value of collateral held	[2]	$ 117,236,750	$ 118,519,817

[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] Counterparties domiciled in Europe and Asia, or their U.S. subsidiaries.