Product Revenues, Accounts Receivable, and Reserves for Product Sales - Summary of Product Revenue Allowance and Reserve Categories (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Chargebacks, Discounts, and Fees [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 164
Provision related to sales in the current year	1,466
Credits and payments made	(184)
Ending balance	1,446
Government and Other Rebates [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	1,936
Provision related to sales in the current year	2,566
Adjustments related to prior period sales	(2)
Credits and payments made	(1,639)
Ending balance	2,861
Returns [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	251
Provision related to sales in the current year	651
Adjustments related to prior period sales	(249)
Ending balance	653
Product Revenue Allowance and Reserves [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	2,351
Provision related to sales in the current year	4,683
Adjustments related to prior period sales	(251)
Credits and payments made	(1,823)
Ending balance	$ 4,960