Credit Loss Allowance

No definition available.

Name:	rprx_CreditLossAllowance
Namespace Prefix:	rprx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Lease Extension Term

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Long Term Funding Partnership, Amount

+ References

No definition available.

+ Details

Name:	rprx_LongTermFundingPartnershipAmount
Namespace Prefix:	rprx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Long Term Funding Partnership, Number Of Tranches

+ References

No definition available.

+ Details

Name:	rprx_LongTermFundingPartnershipNumberOfTranches
Namespace Prefix:	rprx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Long Term Funding Partnership, Remaining Availability

+ References

No definition available.

+ Details

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Namespace Prefix:	rprx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Long Term Funding Partnership, Remaining Unfunded Amount

+ References

No definition available.

+ Details

Name:	rprx_LongTermFundingPartnershipRemainingUnfundedAmount
Namespace Prefix:	rprx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number Of Parts To Funding Arrangement

+ References

No definition available.

+ Details

Name:	rprx_NumberOfPartsToFundingArrangement
Namespace Prefix:	rprx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

- Definition

Indicates line item in statement of financial position that includes operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-2

+ Details

Name:	us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

- Definition

Indicates line item in statement of financial position that includes operating lease right-of-use asset.

+ References

+ Details

Name:	us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	instant

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

+ Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=rprx_RPManagerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=rprx_CytokineticsFundingCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=rprx_RevolutionMedicinesFundingCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=rprx_RevolutionMedicinesIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=rprx_SeniorSecuredTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=rprx_RoyaltyPurchaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_CounterpartyNameAxis=rprx_RASolute302Member
Namespace Prefix:
Data Type:	na
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- Details

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Commitments and Contingencies - Narrative (Details) $ in Millions	1 Months Ended
	Apr. 30, 2026 USD ($)	Jun. 30, 2025 USD ($) part tranche	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Long-term Purchase Commitment [Line Items]
Lease extension term			5 years
RP Manager
Long-term Purchase Commitment [Line Items]
Right of use assets			$ 18.3	$ 19.1
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]			Other assets
Present value of lease liabilities			$ 15.3	16.1
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]			Other liabilities
Cytokinetics Funding Commitments
Long-term Purchase Commitment [Line Items]
Long term funding partnership, remaining availability			$ 175.0
Revolution Medicines Funding Commitments
Long-term Purchase Commitment [Line Items]
Number of parts to funding arrangement \| part		2
Revolution Medicines Funding Commitments \| Revolution Medicines, Inc
Long-term Purchase Commitment [Line Items]
Credit loss allowance			85.3	$ 89.0
Revolution Medicines Funding Commitments \| Revolution Medicines, Inc \| Senior Secured Term Loan
Long-term Purchase Commitment [Line Items]
Long term funding partnership, number of tranches \| tranche		3
Long term funding partnership, amount		$ 250.0
Revolution Medicines Funding Commitments \| Revolution Medicines, Inc \| Royalty Purchase
Long-term Purchase Commitment [Line Items]
Long term funding partnership, number of tranches \| tranche		5
Long term funding partnership, amount		$ 250.0
Funding commitment remained unfunded			1,000.0
Revolution Medicines Funding Commitments \| Revolution Medicines, Inc \| Maximum
Long-term Purchase Commitment [Line Items]
Other commitment		2,000.0
Revolution Medicines Funding Commitments \| Revolution Medicines, Inc \| Maximum \| Senior Secured Term Loan
Long-term Purchase Commitment [Line Items]
Other commitment			$ 750.0
Revolution Medicines Funding Commitments \| Revolution Medicines, Inc \| Maximum \| Royalty Purchase
Long-term Purchase Commitment [Line Items]
Other commitment		$ 1,250.0
Revolution Medicines Funding Commitments \| RASolute 302 \| Royalty Purchase \| Subsequent Event
Long-term Purchase Commitment [Line Items]
Long term funding partnership, amount	$ 250.0