v3.25.2
Investments - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]          
Accrued Interest Receivable Written Off $ 0 $ 0 $ 0 $ 0  
Impairment of assets     $ 0   $ 0
US Treasury Bond Securities | U.S. Corporate Bonds [Member] | Maximum [Member]          
Debt Securities, Available-for-Sale [Line Items]          
Marketable securities, remaining contractual maturities     1 year   1 year
US Treasury Bond Securities | Corporate Bonds and Municipal Securities [Member]          
Debt Securities, Available-for-Sale [Line Items]          
Marketable securities fair value held to maturity 18,900,000   $ 18,900,000   $ 30,700,000
US Treasury Bond Securities | Corporate Bonds and Municipal Securities [Member] | Maximum [Member]          
Debt Securities, Available-for-Sale [Line Items]          
Marketable Securities Maturity Period     2 years   2 years
US Treasury Bond Securities | Corporate Bonds and Municipal Securities [Member] | Minimum [Member]          
Debt Securities, Available-for-Sale [Line Items]          
Marketable Securities Maturity Period     1 year   1 year
Prepaid Expenses and Other Current Assets [Member]          
Debt Securities, Available-for-Sale [Line Items]          
Accrued interest receivable $ 2,200,000   $ 2,200,000   $ 3,400,000