Summary of Significant Accounting Policies (Details) - noncontrolling_interest		3 Months Ended	12 Months Ended
	Feb. 11, 2020	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Vertex | Current portion of Financial royalty assets | Customer Concentration Risk
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Individual licensees exceeding 10% or more of revenue (as percent)		34.00%	32.00%
Old RPI
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Noncontrolling interest (as percent)				82.00%
Number of noncontrolling interests created			3
RPCT
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Ownership percentage (as a percent)	66.00%
Legacy Investors Partnerships | Old RPI
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Noncontrolling interest (as percent)			18.00%
RPSFT | RPCT
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Noncontrolling interest (as percent)	34.00%
Exchange Offer Transaction | Old RPI
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Ownership percentage (as a percent)	82.00%
Exchange Offer Transaction | Legacy Investors Partnerships
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Exchange offering, ownership percentage	82.00%