VARIABLE INTEREST ENTITIES BORROWINGS (CRE - Term Repurchase Facility) (Details) RSO (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
RSO [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ 0	$ 65,000
Amount at Risk Under Facility [Abstract]
Weighted Average Maturity in Days	12 years 6 months	15 years 2 months
RSO [Member] \| CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	348,000
Wells Fargo Bank, National Association [Member] \| RCC Real Estate [Member] \| CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Face amount of debt issued	58,800,000
Unamortized debt issuance costs	348,000
Debt instrument, fair value	85,400,000	0
Description of variable rate basis	one-month LIBOR
Basis spread on variable rate	2.67%
Debt instrument, weighted average interest rate	2.88%
Amount at Risk Under Facility [Abstract]
Amount at Risk	26,332,000
Weighted Average Maturity in Days	18 days
Weighted Average Interest Rate	2.88%
Wells Fargo Bank, National Association [Member] \| RSO [Member] \| CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Debt instrument term	18 months
Debt instrument term, number of options to extend	2
Debt instrument term, option to extend	1 year
Loan origination fee	0.00375
Wells Fargo Bank, National Association [Member] \| RSO [Member] \| Maximum [Member] \| CRE - Term Repurchase Facility [Member]
Debt Instrument [Line Items]
Face amount of debt issued	$ 150,000,000

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Weighted average date when the debt instrument is scheduled to be fully repaid, in free form syntax.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Number Of Options To Extend

+ References

No definition available.

+ Details

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- Definition

Debt instrument, term.

+ References

No definition available.

+ Details

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- Definition

Debt instrument, term, option to extend.

+ References

No definition available.

+ Details

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- Definition

The cost of setting up and originating a loan in basis points.

+ References

No definition available.

+ Details

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

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-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

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- Definition

Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time.

+ References

No definition available.

+ Details

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- Definition

The amount at risk under repurchase agreements is defined as the excess of carrying amount (or market value, if higher than the carrying amount or if there is no carrying amount) of the securities or other assets sold under agreement to repurchase, including accrued interest plus any cash or other assets on deposit to secure the repurchase obligation, over the amount of the repurchase liability (adjusted for accrued interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph m

-Subparagraph 1

-Article 4

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(m)(1)(i)(B)(iii))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

+ Details

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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