Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amortized cost of short-term investments	$ 328,405
Amortized cost of long-term investments	$ 118,330
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	35,611,219	35,466,001
Common stock, shares outstanding	35,611,219	35,466,001