Product Revenue Reserves and Allowances - Disaggregation of Revenue (Parenthetical) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Total revenues		$ 41,404	$ 36,939
YUTIQ [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[1]	28,329	16,959
YUTIQ [Member] | Ocumension Therapeutics [Member] | Supply Agreement [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		343	25
DEXYCU [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[2]	11,576	18,353
DEXYCU [Member] | Ocumension Therapeutics [Member] | Supply Agreement [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		$ 20	$ 283

[1] Included approximately $343 and $25 of revenue from YUTIQ product sales to Ocumension Therapeutics under a supply agreement for the years ended December 31, 2022 and 2021, respectively.

[2] Included approximately $20 and $283 of revenue from DEXYCU product sales to Ocumension Therapeutics under a supply agreement for the years ended December 31, 2022 and 2021, respectively.