VARIABLE INTEREST ENTITIES - LOANS HELD FOR INVESTMENT (Details) RSO (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
RSO [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, net	111,736,000	21,916,000
Allowance for loan loss	4,613,000	13,807,000
Loans, allowances	4,600,000	13,800,000
RSO [Member] \| North Carolina [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Held for Investment, Percentage of Loans Originated		9.00%
RSO [Member] \| Georgia [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Held for Investment, Percentage of Loans Originated	56.00%	66.00%
RSO [Member] \| Alabama [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Held for Investment, Percentage of Loans Originated	5.00%	6.00%
RSO [Member] \| TENNESSEE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Held for Investment, Percentage of Loans Originated	4.00%	7.00%
RSO [Member] \| Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Held for Investment, Percentage of Loans Originated	8.00%
RSO [Member] \| Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Held for Investment, Percentage of Loans Originated	7.00%	7.00%
RSO [Member] \| Bank Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, net	330,400,000	514,400,000
Allowance for loan loss	570,000	3,391,000
RSO [Member] \| Bank Loans [Member] \| Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Variable rate basis	three month LIBOR	three month LIBOR
Basis spread on variable rate	1.25%	1.50%
RSO [Member] \| Bank Loans [Member] \| Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Variable rate basis	three month LIBOR	three month LIBOR
Basis spread on variable rate	8.75%	10.50%
RSO [Member] \| Whole Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan loss	3,758,000	9,683,000
RSO [Member] \| Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan loss	570,000	3,400,000
Middle-market Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, net		44,300,000
Middle-market Loans [Member] \| RSO [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, net	250,100,000
Bank Loans [Member] \| RSO [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, allowances	570,000,000	3,400,000
Commercial Real Estate Loans [Member] \| RSO [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, allowances	4,000,000	10,400,000
Principal receivable		40,900,000
Commercial Real Estate Loans [Member] \| RSO [Member] \| California [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration of loan portfolio risk (in hundredths)	27.40%	39.00%
Commercial Real Estate Loans [Member] \| RSO [Member] \| Arizona [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration of loan portfolio risk (in hundredths)	7.30%	6.40%
Commercial Real Estate Loans [Member] \| RSO [Member] \| Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration of loan portfolio risk (in hundredths)	27.30%	14.60%
Commercial Real Estate Loans [Member] \| RSO [Member] \| Industry Grouping of Healthcare, Education and Childcare [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration of loan portfolio risk (in hundredths)	17.50%	15.80%
Middle-market Loans [Member] \| RSO [Member] \| Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Basis spread on variable rate	5.50%	3.75%
Middle-market Loans [Member] \| RSO [Member] \| Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Basis spread on variable rate	9.25%	10.50%
Middle-market Loans [Member] \| RSO [Member] \| Industry Grouping of Persona, Food and Miscellaneous Service [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration of loan portfolio risk (in hundredths)	13.70%
Middle-market Loans [Member] \| RSO [Member] \| Hotels, Motels, Inns, and Gaming [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration of loan portfolio risk (in hundredths)	23.10%

The percentage of the loan portfolio credit concentration risk.

No definition available.

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Namespace Prefix:	rexi_
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Period Type:	instant

- Definition

Loans Held for Investment, Percentage of Loans Originated

+ References

No definition available.

+ Details

Name:	rexi_LoansHeldforInvestmentPercentageofLoansOriginated
Namespace Prefix:	rexi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The allowance for loan losses represents the reserve to cover probable credit losses related to specifically identified loans, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	rexi_LoansReceivableAllowance
Namespace Prefix:	rexi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Principal Receivable

+ References

No definition available.

+ Details

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

- Details

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

- 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

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

- 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

Name:	us-gaap_LoansReceivableBasisSpreadOnVariableRate
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

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

- Definition

Amount classified as loans attributable to disposal group held for sale or disposed of. 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=35742846&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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	dei_LegalEntityAxis=rexi_ResourceCapitalCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	rexi_ClassOfLoansWithImputedInterestAxis=rexi_BankLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	rexi_ClassOfLoansWithImputedInterestAxis=rexi_CommercialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	rexi_ClassOfLoansWithImputedInterestAxis=rexi_MiddlemarketLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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