Term Debt (Details) - Secured term loan - Innoviva Strategic Opportunities LLC - USD ($) $ in Millions			12 Months Ended
	Mar. 12, 2025	Mar. 04, 2024	Dec. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Jul. 10, 2023	Jan. 10, 2023
Term Loan
Aggregate amount							$ 30.0
Interest rate (as a percent)							8.00%
Gain (loss) on debt modification			$ 2.2
2023 Credit Agreement
Term Loan
Aggregate amount						$ 25.0
Interest rate (as a percent)						14.00%
Recognized at fair value						$ 21.2
Debt issuance cost and debt discount						$ 3.8
Effective interest rate (as a percent)				41.64%	27.31%
2024 Credit Agreement
Term Loan
Aggregate amount		$ 35.0
Interest rate (as a percent)		14.00%
Debt issuance costs		$ 0.1
Proceeds from secured debt		$ 35.0
Effective interest rate (as a percent)				12.68%	14.25%
2025 Credit Agreement
Term Loan
Aggregate amount	$ 10.0
Interest rate (as a percent)	14.00%
Proceeds from secured debt	$ 10.0
Effective interest rate (as a percent)				14.19%