Quarterly report [Sections 13 or 15(d)]

Cash, Cash Equivalents, Short-Term and Long-Term Investments - Additional Information (Detail)

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Cash, Cash Equivalents, Short-Term and Long-Term Investments - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Cash Cash Equivalents Short Term And Long Term Investments [Line Items]          
Interest income $ 6,700 $ 10,500 $ 12,100 $ 19,000  
Long-term investments 157,452   157,452   $ 146,687
Life Insurance Contracts [Member]          
Cash Cash Equivalents Short Term And Long Term Investments [Line Items]          
Long-term investments $ 78,400   $ 78,400   $ 71,100
Maximum [Member]          
Cash Cash Equivalents Short Term And Long Term Investments [Line Items]          
Long-term investments maturity period     2 years