Royalty Purchase and Sale Agreement - Summarizes the Activity of the HCR Agreement (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Royalty Purchase And Sale Agreement [Line Items]
Royalty purchase and sale agreement balance at December 31, 2023	$ 37,079
Non-cash interest expense	8,473	$ 604
Receivable for additional HCR financing earned	2,500
Balance at December 31, 2024	44,448	37,079
HCR Agreement [Member]
Royalty Purchase And Sale Agreement [Line Items]
Royalty purchase and sale agreement balance at December 31, 2023	37,079
Payments	(3,604)	0
Non-cash interest expense	8,473
Receivable for additional HCR financing earned	2,500
Balance at December 31, 2024	$ 44,448	$ 37,079
Effective interest rate	27.82%