Indirect Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Cash flow from operating activities:
Consolidated net income	$ 806,358	$ 122,077	$ 996,462	$ 982,502
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Income from financial royalty assets			(1,587,577)	(1,674,689)
Provision for changes in expected cash flows from financial royalty assets	(227,604)	277,137	568,425	637,169
Amortization of debt discount and issuance costs			14,256	15,658
(Gains)/losses on derivative financial instruments			(3,000)	2,290
Gains on equity securities	(50,849)	(1,541)	(81,455)	(31,994)
Equity in losses/(earnings) of equity method investees	(10,407)	5,222	2,039	(28,614)
Distributions from equity method investees			13,396	18,823
Share-based compensation			1,819	1,740
Gains on available for sale debt securities	$ (57,680)	$ (7,300)	(103,900)	(122,500)
Other			(1,801)	3,263
Changes in operating assets and liabilities:
Cash collected on financial royalty assets			2,205,933	2,454,054
Other royalty income receivable			(2,496)	(669)
Other current assets			13,068	(1,942)
Accounts payable and accrued expenses			3,582	1,650
Interest payable			(13,270)	(41,567)
Other liabilities			980	0
Net cash provided by operating activities			2,026,461	2,215,174
Cobenfy
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Milestone payable			25,000	0
Erleada
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Milestone payable			$ 6,200	$ 0