Revenue - Product Revenue Allowance and Reserves (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	$ 3,353	$ 1,712
Provision related to sales in the current year	14,801	9,382
Adjustments related to prior period sales		(272)
Deductions applied and payments made	(13,644)	(7,739)
Ending balance	4,510	3,083
Chargebacks, Discounts and Fees [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	1,153	574
Provision related to sales in the current year	8,913	4,990
Adjustments related to prior period sales		(50)
Deductions applied and payments made	(8,092)	(4,631)
Ending balance	1,974	883
Government and Other Rebates [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	1,821	535
Provision related to sales in the current year	5,424	3,686
Adjustments related to prior period sales		(22)
Deductions applied and payments made	(5,293)	(2,404)
Ending balance	1,952	1,795
Returns [Member]
Disclosure Of Product Revenue Reserves And Allowances [Line Items]
Beginning balance	379	603
Provision related to sales in the current year	464	706
Adjustments related to prior period sales		(200)
Deductions applied and payments made	(259)	(704)
Ending balance	$ 584	$ 405