Financial Instruments - Available-for-sale Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract]
Fair Value, Less Than 12 Months	$ 166,940	$ 58,944
Fair Value, 12 Months or Greater	692	1,027
Fair Value, Total	167,632	59,971
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less Than 12 Months	(69)	(40)
Gross Unrealized Losses, 12 Months or Greater	(4)	(4)
Gross Unrealized Losses, Total	(73)	(44)
Asset-backed securities
Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract]
Fair Value, Less Than 12 Months	3,363	3,211
Fair Value, 12 Months or Greater	692	1,027
Fair Value, Total	4,055	4,238
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less Than 12 Months	(3)	(6)
Gross Unrealized Losses, 12 Months or Greater	(4)	(4)
Gross Unrealized Losses, Total	(7)	(10)
Corporate notes and obligations
Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract]
Fair Value, Less Than 12 Months	56,943	40,527
Fair Value, 12 Months or Greater	0	0
Fair Value, Total	56,943	40,527
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less Than 12 Months	(40)	(21)
Gross Unrealized Losses, 12 Months or Greater	0	0
Gross Unrealized Losses, Total	(40)	(21)
U.S. treasury securities
Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract]
Fair Value, Less Than 12 Months	106,634	7,397
Fair Value, 12 Months or Greater	0	0
Fair Value, Total	106,634	7,397
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less Than 12 Months	(26)	(8)
Gross Unrealized Losses, 12 Months or Greater	0	0
Gross Unrealized Losses, Total	$ (26)	(8)
U.S. agency securities
Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract]
Fair Value, Less Than 12 Months		7,809
Fair Value, 12 Months or Greater		0
Fair Value, Total		7,809
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less Than 12 Months		(5)
Gross Unrealized Losses, 12 Months or Greater		0
Gross Unrealized Losses, Total		$ (5)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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