XML 78 R53.htm IDEA: XBRL DOCUMENT v3.24.1
Financial Instruments - Accumulated Unrealized Losses on Debt Securities Classified as Available-for-Sale in Continuous Loss Position (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
USD ($)
security
Dec. 31, 2022
USD ($)
Investments, Debt and Equity Securities [Abstract]    
Debt securities, available-for-sale, unrealized loss position, number of positions | security 12  
Schedule Of Available For Sale Securities [Line Items]    
Less than 12 months, Estimated Fair Value $ 930 $ 0
Less than 12 months, Gross Unrealized Losses (49) 0
More than 12 months, Estimated Fair Value 0 876
More than 12 months, Gross Unrealized Losses 0 (94)
Mutual funds    
Schedule Of Available For Sale Securities [Line Items]    
Less than 12 months, Estimated Fair Value 39 0
Less than 12 months, Gross Unrealized Losses (1) 0
More than 12 months, Estimated Fair Value 0 36
More than 12 months, Gross Unrealized Losses 0 (2)
Foreign bonds    
Schedule Of Available For Sale Securities [Line Items]    
Less than 12 months, Estimated Fair Value 891 0
Less than 12 months, Gross Unrealized Losses (48) 0
More than 12 months, Estimated Fair Value 0 840
More than 12 months, Gross Unrealized Losses $ 0 $ (92)
Foreign bonds | Noncurrent Assets    
Schedule Of Available For Sale Securities [Line Items]    
Weighted- Average Remaining Contractual Life (in years) 3 years 3 months 18 days 4 years 6 months