Line of Credit Facility, Lender Commitments

No definition available.

Name:	rep_LineOfCreditFacilityLenderCommitments
Namespace Prefix:	rep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of Agreements Entered Into

+ References

No definition available.

+ Details

Name:	rep_NumberOfAgreementsEnteredInto
Namespace Prefix:	rep_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details)			3 Months Ended
Subsequent Events (Details)	Oct. 07, 2021 agreement $ / shares	Mar. 04, 2021 $ / shares	Sep. 30, 2021 USD ($) $ / shares	Jun. 30, 2021 $ / shares	Mar. 31, 2021 $ / shares	Dec. 31, 2020 $ / shares	Sep. 30, 2020 $ / shares	Jun. 30, 2020 $ / shares	Mar. 31, 2020 $ / shares	Dec. 31, 2019 $ / shares	Oct. 31, 2021 USD ($)	Oct. 21, 2021 USD ($)	Aug. 31, 2021 USD ($)	Mar. 05, 2021 USD ($)	May 07, 2020 USD ($)	Oct. 15, 2019 USD ($)	Sep. 28, 2017 USD ($)
Subsequent Event [Line Items]
Cash dividend declared (USD per Share/Unit) \| $ / shares		$ 0.28	$ 0.28	$ 0	$ 0.29	$ 0.30	$ 0.20	$ 0.20	$ 0.40	$ 0.40
Revolving Credit Facility \| Line of Credit
Subsequent Event [Line Items]
Borrowing base			$ 135,000,000										$ 132,500,000	$ 135,000,000	$ 150,000,000	$ 180,000,000	$ 25,000,000
Commitments														$ 135,000,000
Subsequent Event
Subsequent Event [Line Items]
Cash dividend declared (USD per Share/Unit) \| $ / shares	$ 0.31
Number of agreements entered into \| agreement	2
Subsequent Event \| Revolving Credit Facility \| Line of Credit
Subsequent Event [Line Items]
Borrowing base											$ 175,000,000	$ 175,000,000
Commitments												$ 175,000,000