BORROWINGS (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 804,811,000	$ 568,432,457
Repurchase Agreements, Weighted average interest rate	1.07%	1.19%
Repurchase Agreements, Market value of collateral held	$ 876,121,505	$ 697,384,372
Agency [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 755,221,000	$ 358,239,000
Repurchase Agreements, Weighted average interest rate	0.97%	0.66%
Repurchase Agreements, Market value of collateral held	$ 790,190,232	$ 374,952,510
Non-Agency [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 7,313,000	$ 114,512,000
Repurchase Agreements, Weighted average interest rate	2.39%	2.24%
Repurchase Agreements, Market value of collateral held	$ 12,784,707	$ 121,475,112
Multi-Family [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 42,277,000	$ 86,177,000
Repurchase Agreements, Weighted average interest rate	2.52%	1.83%
Repurchase Agreements, Market value of collateral held	$ 73,146,566	$ 190,056,347
Mortgage loans [Member]
Short-term Debt [Line Items]
Repurchase Agreements, Amount outstanding	$ 0	$ 9,504,457
Repurchase Agreements, Weighted average interest rate	0.00%	2.87%
Repurchase Agreements, Market value of collateral held	$ 0	$ 10,900,403

This is the weighted average interest rate during the reporting period as a result of repurchase agreements.

No definition available.

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- Definition

Fair value of collateral permitted, by contact or custom, to be sold or re-pledged.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

+ Details

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- Definition

Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 10
-Section 55
-Paragraph 51
-URI http://asc.fasb.org/extlink&oid=109221364&loc=d3e101761-111710

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(m)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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+ References

No definition available.

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