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Cash and Investments in Marketable Securities - Cash and Investments in Marketable Securities, Including Cash Equivalents (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Estimated Fair Value at    
Cash and cash equivalents $ 42,988 $ 44,252 [1]
Short-term investments 132,915 210,974 [1]
Long-term investments 0 13,869 [1]
Total cash and investments in marketable securities $ 175,903 $ 269,095
[1] All share and per share amounts have been retrospectively adjusted to reflect a one-for-fifteen reverse stock split (see Note 6).