Indirect Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Consolidated net income	$ 1,700,088	$ 230,064	$ 1,241,201
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Income from financial royalty assets	(2,197,754)	(2,125,096)	(2,065,083)
Provision for changes in expected cash flows from financial royalty assets	560,656	904,244	452,842
Amortization of intangible assets	0	5,670	22,996
Amortization of debt discount and issuance costs	20,499	21,356	20,162
Losses/(gains) on derivative financial instruments	2,290	(96,610)	21,532
(Gains)/losses on equity securities	(87,139)	33,442	48,066
Equity in (earnings)/losses of equity method investees	(28,882)	8,973	19,490
Distributions from equity method investees	18,823	39,142	34,384
Loss on extinguishment of debt	0	419	358
Share-based compensation	2,357	2,170	2,443
Interest income accretion	0	(53,432)	(50,896)
(Gains)/losses on available for sale debt securities	(230,840)	6,815	(17,859)
Financial royalty asset impairment	0	615,827	0
Termination of derivative financial instruments	0	0	(16,093)
Other	20,912	11,098	4,461
Changes in operating assets and liabilities:
Cash collected on financial royalty assets	3,201,410	2,507,236	2,315,854
Accrued royalty receivable	2,588	36,456	(20,131)
Other royalty income receivable	(1,521)	(4,744)	(9,012)
Other current assets	559	2,198	1,857
Accounts payable and accrued expenses	6,236	2,286	(4,586)
Interest payable	(2,480)	(3,534)	15,550
Net cash provided by operating activities	2,987,802	2,143,980	2,017,536
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Milestone payable - Erleada	0	12,400	0
Unpaid purchase of non-controlling interest in RPCT	$ 11,375	$ 0	$ 0