Name:	rfl_InvestmentinRPFinanceLLCDetailsLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Percentage of issued and outstanding shares of common stock.

No definition available.

Name:	rfl_PercentageOfIssuedAndOutstandingShares
Namespace Prefix:	rfl_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

Related party receivables.

No definition available.

Name:	rfl_RelatedPartyReceivables
Namespace Prefix:	rfl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
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-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
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-Name Accounting Standards Codification
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Name:	us-gaap_DebtAndEquitySecuritiesGainLoss
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Description of interest rate for borrowing under credit facility. Includes, but is not limited to, terms and method for determining interest rate.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
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Name:	us-gaap_LineOfCreditFacilityInterestRateDescription
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Data Type:	xbrli:stringItemType
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Period Type:	duration

The effective interest rate during the reporting period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Name:	us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

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

Interest received on loans and other debt instruments during the current period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
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-Subparagraph (b)
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