Irrevocable Option to Buy Interests in Joint Venture, Exercise Period

No definition available.

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

- Definition

Irrevocable Option to Buy Interests in Joint Venture, Percentage

+ References

No definition available.

+ Details

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

- Definition

The percentage of interest in the limited partnership formed.

+ References

No definition available.

+ Details

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

- Definition

Represents the amount of preferred equity interest retained as a percentage of incentive management fees.

+ References

No definition available.

+ Details

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

- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ 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 210.5-02.12)

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=29638308&loc=d3e40346-111594

+ Details

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

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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

- Definition

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

+ References

No definition available.

+ Details

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

- Definition

Costs incurred in connection with the offering and selling of additional partner interest.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 5.D.Q1)

-URI http://asc.fasb.org/extlink&oid=6488002&loc=d3e600348-122990

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section D

+ Details

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

- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Details

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

- Details

Name:	dei_LegalEntityAxis=rexi_ResourceRealEstateOpportunityREITIIInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	dei_LegalEntityAxis=us-gaap_ParentCompanyMember
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_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=rexi_CvcCreditPartnersLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

INVESTMENTS IN UNCONSOLIDATED ENTITIES AND LOAN MANAGER (Narrative) (Details) (USD $)	1 Months Ended	0 Months Ended
	Jan. 31, 2013	Apr. 17, 2012	Dec. 31, 2014	Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]
Ownership percentage	10.00%
Proceeds from sale of investment	$ 3,000,000
Gain on sale of investments	1,600,000us-gaap_GainOnSaleOfInvestments
Offering costs			129,000	2,400,000
RRE Opportunity REIT [Member]
Schedule of Equity Method Investments [Line Items]
Cost method investment			2,500,000
Resource Real Estate Opportunity REIT II, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Cost method investment			1,300,000
Innovation Office REIT [Member]
Schedule of Equity Method Investments [Line Items]
Cost method investment			200,000
Resource America, Inc. [Member] \| General Partner [Member]
Schedule of Equity Method Investments [Line Items]
Preferred equity interest retained as a percentage of incentive management fees		75.00%	75.00%
CVC Credit Partners, L.P. [Member]
Schedule of Equity Method Investments [Line Items]
Cost method investment			$ 6,800,000
CVC Credit Partners, L.P. [Member]
Schedule of Equity Method Investments [Line Items]
Option to buy interests in joint venture, percentage		9.00%
Option to buy interests in joint venture, exercise period (in days)		60 days
CVC Credit Partners, L.P. [Member] \| Resource America, Inc. [Member] \| Limited Partner [Member]
Schedule of Equity Method Investments [Line Items]
Percentage interest in limited partnership formed		33.00%