Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Available-for-sale securities:
Short-term investments, Amortized Cost	$ 341,502	$ 315,767
Gross Unrealized Gains	229	1,461
Gross Unrealized Losses less than one year	(364)	(78)
Gross Unrealized Losses greater than one year	(804)	(1,759)
Short-term investments, Estimated Fair Value	340,967	316,022
Long-term investments, Amortized Cost	86,661	38,698
Total long-term investments	86,402	39,887
Long-term investments, Estimated Fair Value	86,257	38,067
Amortized Cost	428,308	356,285
Estimated Fair Value	427,369	355,909
Short-term investments
Available-for-sale securities:
Gross Unrealized Gains	229	1,461
Gross Unrealized Losses less than one year	(121)	(51)
Gross Unrealized Losses greater than one year	(643)	(1,155)
Long-term investments
Available-for-sale securities:
Gross Unrealized Losses less than one year	(243)	(27)
Gross Unrealized Losses greater than one year	(161)	(604)
Total long-term investments	86,402	39,887
Amortized Cost	86,806	40,518
Certificates of deposit
Available-for-sale securities:
Amortized Cost	145	1,820
Estimated Fair Value	145	1,820
Corporate debt securities
Available-for-sale securities:
Short-term investments, Amortized Cost	126,865	112,055
Short-term investments, Estimated Fair Value	126,642	112,207
Long-term investments, Amortized Cost	43,853	19,306
Long-term investments, Estimated Fair Value	43,655	19,017
Corporate debt securities \| Short-term investments
Available-for-sale securities:
Gross Unrealized Gains	132	703
Gross Unrealized Losses less than one year	(52)	(15)
Gross Unrealized Losses greater than one year	(303)	(536)
Corporate debt securities \| Long-term investments
Available-for-sale securities:
Gross Unrealized Losses less than one year	(136)
Gross Unrealized Losses greater than one year	(62)	(289)
U.S. government and agency debt securities
Available-for-sale securities:
Short-term investments, Amortized Cost	214,637	199,708
Short-term investments, Estimated Fair Value	214,325	199,819
Long-term investments, Amortized Cost	42,808	19,392
Long-term investments, Estimated Fair Value	42,602	19,050
U.S. government and agency debt securities \| Short-term investments
Available-for-sale securities:
Gross Unrealized Gains	97	758
Gross Unrealized Losses less than one year	(69)	(36)
Gross Unrealized Losses greater than one year	(340)	(611)
U.S. government and agency debt securities \| Long-term investments
Available-for-sale securities:
Gross Unrealized Losses less than one year	(107)	(27)
Gross Unrealized Losses greater than one year	$ (99)	(315)
Non-U.S. government debt securities
Available-for-sale securities:
Short-term investments, Amortized Cost		4,004
Short-term investments, Estimated Fair Value		3,996
Non-U.S. government debt securities \| Short-term investments
Available-for-sale securities:
Gross Unrealized Losses greater than one year		$ (8)

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