Marketable Securities - Amortized Cost (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amortized Cost
Total available-for-sale securities	$ 284,172	$ 145,612
Unrealized Gains (Losses)
Unrealized Gains	265	0
Unrealized Losses	(70)	(2,057)
Fair Value
Marketable securities	284,367	143,555
One Year or Less
Amortized Cost
Total securities with a maturity of one year or less	260,966	142,170
Unrealized Gains (Losses)
Unrealized Gains	127	0
Unrealized Losses	(70)	(1,933)
Fair Value
Total securities with a maturity of one year or less	261,023	140,237
One to Two Years
Amortized Cost
Total securities with a maturity of greater than one year	23,206	3,442
Unrealized Gains (Losses)
Unrealized Gains	138	0
Unrealized Losses	0	(124)
Fair Value
Total securities with a maturity of greater than one year	23,344	3,318
U.S. government agency securities and treasuries | One Year or Less
Amortized Cost
Total securities with a maturity of one year or less	235,500	100,555
Unrealized Gains (Losses)
Unrealized Gains	127	0
Unrealized Losses	(41)	(1,159)
Fair Value
Total securities with a maturity of one year or less	235,586	99,396
U.S. government agency securities and treasuries | One to Two Years
Amortized Cost
Total securities with a maturity of greater than one year	15,537	0
Unrealized Gains (Losses)
Unrealized Gains	45	0
Unrealized Losses	0	0
Fair Value
Total securities with a maturity of greater than one year	15,582	0
Corporate debt securities | One Year or Less
Amortized Cost
Total securities with a maturity of one year or less	25,466	41,615
Unrealized Gains (Losses)
Unrealized Gains	0	0
Unrealized Losses	(29)	(774)
Fair Value
Total securities with a maturity of one year or less	25,437	40,841
Corporate debt securities | One to Two Years
Amortized Cost
Total securities with a maturity of greater than one year	7,669	3,442
Unrealized Gains (Losses)
Unrealized Gains	93	0
Unrealized Losses	0	(124)
Fair Value
Total securities with a maturity of greater than one year	$ 7,762	$ 3,318