Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Net (loss) income	$ (521,960)	$ (615,117)	$ 515,837
Other comprehensive (loss) income:
Unrealized gain (loss) on investments	503	9,310	(7,524)
Pension actuarial loss	(1,405)	(1,003)	(499)
Total other comprehensive (loss) income	(902)	8,307	(8,023)
Comprehensive (loss) income	(522,862)	(606,810)	507,814
Comprehensive loss attributable to noncontrolling interest	0	(56)	0
Comprehensive (loss) income attributable to VirBio	$ (522,862)	$ (606,754)	$ 507,814