The asset agreement provides for a percentage of assets management fee.

No definition available.

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

- Definition

Collateral Loan Obligations Bank Loans

+ References

No definition available.

+ Details

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

- Definition

Investor Relations, Percentage

+ References

No definition available.

+ Details

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

- Definition

Management Agreement Term

+ References

No definition available.

+ Details

Name:	rexi_ManagementAgreementTerm
Namespace Prefix:	rexi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Management Agreement Term, Renewal Threshold, Percent

+ References

No definition available.

+ Details

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

- Definition

Number of Colateral Loan Obligations Holdings

+ References

No definition available.

+ Details

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

- Definition

Percent of Base and Additional Collateral Management Fees Permited to be Paid

+ References

No definition available.

+ Details

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

- Definition

Percent of Incentive Collateral Management Fees Permited to be Paid

+ References

No definition available.

+ Details

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

- Definition

Related Party, Expense Reimbursements, Annual Fee

+ References

No definition available.

+ Details

Name:	rexi_RelatedPartyExpenseReimbursementsAnnualFee
Namespace Prefix:	rexi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party, Expense Reimbursements, Annual Fee, Term

+ References

No definition available.

+ Details

Name:	rexi_RelatedPartyExpenseReimbursementsAnnualFeeTerm
Namespace Prefix:	rexi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amounts due on short-term bank loans secured by customers' securities on the balance sheet date.

+ References

No definition available.

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

No definition available.

+ Details

Name:	us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.3)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Related Parties
-URI http://asc.fasb.org/extlink&oid=16382449

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

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

- Details

Name:	us-gaap_CounterpartyNameAxis=rexi_CvcCreditPartnersLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=rexi_CvcCreditPartnersLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=rexi_ResourceCapitalCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	rexi_RevenueRecognitionFeeDescriptionAxis=rexi_QuarterlyFeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnderlyingAssetClassAxis=us-gaap_CollateralizedLoanObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_BridgeLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS (Relationship with RSO) (Details) € in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2014 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2015 holding	Feb. 29, 2016 EUR (€)	Jan. 13, 2016 EUR (€)	Dec. 08, 2014 EUR (€)	May. 06, 2014 EUR (€)	Feb. 28, 2011 USD ($) holding
RSO [Member] \| CVC Credit Partners, L.P. [Member]
Related Party Transaction [Line Items]
Percent of base and additional collateral management fees permitted to be paid								10.00%
Percent of incentive collateral management fees permited to be paid								50.00%
CVC Credit Partners, L.P. [Member] \| RSO [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Realized Gain (Loss) on Disposal	$ (28,500,000)
RSO [Member]
Related Party Transaction [Line Items]
Management agreement term			1 year
Investor relations, percentage			50.00%
Number of CLOs holding \| holding			1					5
ColataCLOs in bank loans								$ 1,700,000,000
Annual fee for expense reimbursements		$ 550,000
Annual fee for expense reimbursements, term		2 years
Renewal threshold, percent			66.00%
Quarterly Fee [Member]
Related Party Transaction [Line Items]
Asset management fees percentage			0.083%
Quarterly Fee [Member] \| RSO [Member]
Related Party Transaction [Line Items]
Asset management fees percentage			0.083%
Collateralized Loan Obligations [Member]
Related Party Transaction [Line Items]
Bank loans								$ 1,700,000,000
Bridge Loan [Member] \| CVC Credit Partners, L.P. [Member]
Related Party Transaction [Line Items]
Interest rate							7.00%
Notes receivable, related party \| €						€ 500	€ 1,500
Subsequent Event [Member] \| Bridge Loan [Member] \| CVC Credit Partners, L.P. [Member]
Related Party Transaction [Line Items]
Interest rate					7.00%
Notes receivable, related party \| €				€ 1,300
Line of Credit Facility, Maximum Borrowing Capacity \| €					€ 3,600