Revenue - Product Revenue Allowance and Reserves (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	$ 1,888	$ 3,353
Provision related to sales in the current year	823	4,817
Adjustments related to prior period sales	(18)	0
Deductions applied and payments made	(981)	(3,684)
Ending balance	1,712	4,486
Chargebacks, Discounts and Fees [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	859	1,153
Provision related to sales in the current year	823	2,674
Adjustments related to prior period sales	40	0
Deductions applied and payments made	(846)	(1,904)
Ending balance	876	1,923
Government and Other Rebates [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	158	1,821
Provision related to sales in the current year	0	2,003
Adjustments related to prior period sales	(40)	0
Deductions applied and payments made	(103)	(1,693)
Ending balance	15	2,131
Returns [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	871	379
Provision related to sales in the current year	0	140
Adjustments related to prior period sales	(18)	0
Deductions applied and payments made	(32)	(87)
Ending balance	$ 821	$ 432