RSO LOANS HELD FOR INVESTMENT (Commercial Real Estate Loans Held for Investment) (Details) (Resource Capital Corp [Member], USD $)	9 Months Ended	12 Months Ended
Sep. 30, 2013	Dec. 31, 2012
Receivables with Imputed Interest [Line Items]
Allowance for loan loss	$ 12,865,000	$ 17,691,000
Number of loans held for sale		2
Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Quantity	52	43
Amortized Cost	741,927,000	667,051,000
Allowance for loan loss	9,900,000	8,000,000
Whole Loans [Member]
Receivables with Imputed Interest [Line Items]
Allowance for loan loss	9,214,000	6,920,000
Loans held for sale, net		34,000,000
Whole Loans [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Amortized Cost	668,115,000	567,938,000
Fixed contractual interest in floating rate whole loan		15.00%
Whole Loans, Floating Rate [Member]
Receivables with Imputed Interest [Line Items]
Loans held for investment, unfunded loan commitments	6,600,000	8,900,000
Whole Loans, Floating Rate [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Quantity	47	37
Amortized Cost	668,115,000	567,938,000
The amortized cost of loans held for investments, fixed rate whole loans included in floating rate whole loans.		2,000,000
Whole Loans, Floating Rate [Member] \| Minimum [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Maturity Dates	December 2013	June 2013
Variable rate basis	LIBOR	LIBOR
Basis spread on variable rate	2.50%	2.50%
Whole Loans, Floating Rate [Member] \| Maximum [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Maturity Dates	August 2019	February 2019
Variable rate basis	LIBOR	LIBOR
Basis spread on variable rate	8.00%	5.50%
B Notes [Member]
Receivables with Imputed Interest [Line Items]
Allowance for loan loss	166,000	206,000
B Notes [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Amortized Cost	16,238,000	16,327,000
B Notes, Fixed Rate [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Quantity	1	1
Amortized Cost	16,238,000	16,327,000
Stated interest rate	8.68%	8.68%
Maturity Dates	April 2016	April 2016
Mezzanine Loans [Member]
Receivables with Imputed Interest [Line Items]
Allowance for loan loss	531,000	860,000
Mezzanine Loans [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Amortized Cost	57,574,000	82,786,000
Mezzanine Loans, Floating Rate [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Quantity		2
Amortized Cost		15,845,000
Mezzanine Loans, Floating Rate [Member] \| Minimum [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Maturity Dates		August 2013
Variable rate basis		LIBOR
Basis spread on variable rate		2.50%
Mezzanine Loans, Floating Rate [Member] \| Maximum [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Maturity Dates		December 2013
Variable rate basis		LIBOR
Basis spread on variable rate		7.45%
Mezzanine Loans, Fixed Rate [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Quantity	4	3
Amortized Cost	57,574,000	66,941,000
Number of loan tranches	2
Mezzanine Loans, Fixed Rate [Member] \| Minimum [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Stated interest rate	0.50%	0.50%
Maturity Dates	December 2014	September 2014
Mezzanine Loans, Fixed Rate [Member] \| Maximum [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Stated interest rate	20.00%	20.00%
Maturity Dates	September 2019	September 2019
Mezzanine Loans, Fixed Rate, Tranche One [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Stated interest rate	0.50%
Mezzanine Loans, Fixed Rate, Tranche Two [Member] \| Commercial Real Estate Loans [Member]
Receivables with Imputed Interest [Line Items]
Stated interest rate	0.50%
Variable rate basis	LIBOR
Basis spread on variable rate	18.50%
Not included in total [Member]
Receivables with Imputed Interest [Line Items]
Allowance for loan loss	$ 9,900,000	$ 8,000,000

The amortized cost of loans held for investments, fixed rate whole loans included in floating rate whole loans.

No definition available.

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Namespace Prefix:	rexi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fixed contractual interest in floating rate whole loan

+ References

No definition available.

+ Details

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Namespace Prefix:	rexi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Loans held for investment, amortized cost

+ References

No definition available.

+ Details

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Namespace Prefix:	rexi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Loans Held For Investment, Unfunded Loan Commitments

+ References

No definition available.

+ Details

Name:	rexi_LoansHeldForInvestmentUnfundedLoanCommitments
Namespace Prefix:	rexi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Loans Receivable, Interest Rate, Stated Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	rexi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Loans Held For Sale

+ References

No definition available.

+ Details

Name:	rexi_NumberOfLoansHeldForSale
Namespace Prefix:	rexi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number Of Loan Tranches

+ References

No definition available.

+ Details

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Namespace Prefix:	rexi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of loans outstanding as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	rexi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 310

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6873192&loc=d3e21338-158488

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Describes matters pertaining to loans not reflected elsewhere.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Article 9

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The reference rate for the variable rate of the loans receivable, 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of loans held for sale, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 35

-Paragraph 49

-URI http://asc.fasb.org/extlink&oid=25442802&loc=d3e3084-111518

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6490209&loc=d3e48214-111002

+ Details

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Balance Type:	debit
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