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

Represents the fair value of preferred stock received in a sale of a business.

No definition available.

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

Fair value of the contractual commitment recorded as a part of the sale of Apidos.

No definition available.

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

Number of Securities Held

No definition available.

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

Past Due Receivable, Days Outstanding To Fully Reserve Balance

No definition available.

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

- Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	duration

Loss, including interest and principal, incurred on a defaulted security, expressed as a percentage of the original principal balance, used as an input to measure fair value.

Name:	us-gaap_FairValueInputsLossSeverity
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

Name:	us-gaap_FairValueInputsPrepaymentRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.