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Financial Instruments - Available-for-Sale Marketable Debt Securities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 1,033	$ 970
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(49)	(94)
Fair Value	984	876
Current Assets
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	94
Gross Unrealized Gains	0
Gross Unrealized Losses	(1)
Fair Value	$ 93
Current Assets | Foreign bonds
Schedule Of Available For Sale Securities [Line Items]
Weighted- Average Remaining Contractual Life (in years)	9 months 18 days
Amortized Cost	$ 54
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Value	54
Current Assets | Mutual funds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	40	38
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1)	(2)
Fair Value	$ 39	$ 36
Noncurrent Assets | Foreign bonds
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
Amortized Cost	$ 939	$ 932
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(48)	(92)
Fair Value	$ 891	$ 840

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