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STATEMENTS OF CASH FLOWS (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Statement of Cash Flows [Abstract]
Financing lease assets obtained in exchange for new financing lease liability, net	$ 45,436

X

- Definition

Financing Lease Assets Obtained In Exchange For New Financing Lease Liability, Net

+ References

No definition available.

+ Details

Name:	rei_FinancingLeaseAssetsObtainedInExchangeForNewFinancingLeaseLiabilityNet
Namespace Prefix:	rei_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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