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Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail) - HEPLISAV-B $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($)
Accounts receivable reserves
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 9,317
Provisions related to current period sales	19,695
Credit or payments made during the period	(19,034)
Adjustments (3)	21
Balance at End of Period	9,999
Revenue Reserve Accruals
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	31,479
Provisions related to current period sales	12,485
Credit or payments made during the period	(13,420)
Adjustments (3)	(4,570)
Balance at End of Period	$ 25,974