Revenue - Product Revenue Allowances and Reserves (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	$ 760	$ 1,888
Provision related to sales in the current year		823
Adjustments related to prior period sales	70	(18)
Deductions applied and payments made	(166)	(981)
Ending balance	664	1,712
Chargebacks, Discounts and Fees [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	83	859
Provision related to sales in the current year		823
Adjustments related to prior period sales	70	40
Deductions applied and payments made	(112)	(846)
Ending balance	41	876
Government and Other Rebates [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance		158
Adjustments related to prior period sales		(40)
Deductions applied and payments made		(103)
Ending balance		15
Returns [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	677	871
Adjustments related to prior period sales		(18)
Deductions applied and payments made	(54)	(32)
Ending balance	$ 623	$ 821