Financial Royalty Assets - Summary of Financial Royalty Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	$ 19,435,432	$ 19,700,209
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	(3,241,498)	(3,551,159)
Net Carrying Value	16,193,934	16,149,050
Less: Cumulative allowance for credit losses (Note 9)	(216,705)	(238,122)
Total current and non-current financial royalty assets, net	15,977,229	15,910,928
Cystic fibrosis franchise
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	5,017,659	5,126,521
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	0	(259,353)
Net Carrying Value	5,017,659	4,867,168
Evrysdi
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	2,100,662	2,085,851
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	(330,332)	(378,565)
Net Carrying Value	1,770,330	1,707,286
Trelegy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	1,053,534	1,121,980
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	0	(66,647)
Net Carrying Value	1,053,534	1,055,333
Voranigo
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	970,268	946,588
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	0	0
Net Carrying Value	970,268	946,588
Tysabri
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	1,238,602	1,319,298
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	(325,167)	(276,134)
Net Carrying Value	913,435	1,043,164
Tremfya
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	936,511	935,069
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	(113,829)	(77,895)
Net Carrying Value	822,682	857,174
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	8,118,196	8,164,902
Cumulative Allowance for Changes in Expected Cash Flows (Note 9)	(2,472,170)	(2,492,565)
Net Carrying Value	$ 5,646,026	$ 5,672,337

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