Royalty Purchase and Sale Agreement - Summarizes the Activity of the HCR Agreement (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Royalty Purchase And Sale Agreement [Line Items]
Royalty purchase and sale agreement balance at December 31, 2024	$ 44,448
Non-cash interest expense	2,867	$ 1,982
Balance at March 31, 2025	45,821
HCR Agreement [Member]
Royalty Purchase And Sale Agreement [Line Items]
Royalty purchase and sale agreement balance at December 31, 2024	44,448
Payments	(1,494)	$ (685)
Non-cash interest expense	2,867
Balance at March 31, 2025	$ 45,821
Effective interest rate	27.85%