Product Revenue Reserves and Allowances - Disaggregation of Revenue (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Total revenues	$ 46,018	$ 41,404
YUTIQ [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	14,232	28,329
YUTIQ [Member] | Ocumension Therapeutics [Member] | Supply Agreement [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	452	343
DEXYCU [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	0	11,576
DEXYCU [Member] | Ocumension Therapeutics [Member] | Supply Agreement [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	$ 82	$ 20