Revenue Recognition - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenue Recognition Milestone Method [Line Items]
Revenue recognition cash discount percentage	2.30%		2.30%
Provision for chargebacks and other deductions included as reduction of accounts receivable total	$ 26,662,000		$ 26,662,000		$ 22,868,000
Upfront fees			2,000,000.0
Commercial Platform
Revenue Recognition Milestone Method [Line Items]
Provision for chargebacks and other deductions included as reduction of accounts receivable total	26,662,000		26,662,000		$ 22,868,000
Chargebacks and other revenue deductions expense	43,200,000	$ 26,900,000	80,900,000	$ 52,500,000
Licensed IP
Revenue Recognition Milestone Method [Line Items]
Revenue recognized		0		0
Licensed IP | 2017 Almirall Out-License Arrangement in U.S.
Revenue Recognition Milestone Method [Line Items]
Revenue recognized	5,000,000.0		5,000,000.0
Royalty revenue
Revenue Recognition Milestone Method [Line Items]
Royalty revenue related to sales	$ 600,000	$ 200,000	1,200,000	200,000
Transferred at a Point in Time | Licensed IP
Revenue Recognition Milestone Method [Line Items]
Revenue recognized			$ 0	21,000,000.0
Revenue recognized upon achievement of first commercial milestone				500,000
Transferred at a Point in Time | Licensed IP | 2017 Almirall Out-License Arrangement in U.S.
Revenue Recognition Milestone Method [Line Items]
Revenue recognized upon achievement of first commercial milestone				$ 20,000,000.0