Cash Equivalents and Marketable Securities - Available-for-Sale Securities in an Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value
Less Than 12 Months	$ 309,201	$ 14,738
12 Months or Longer	0	0
Total, fair value	309,201	14,738
Unrealized Losses
Less Than 12 Months	(673)	(1)
12 Months or Longer	0	0
Total, unrealized losses	(673)	(1)
Commercial paper
Fair Value
Less Than 12 Months	100,124
12 Months or Longer	0
Total, fair value	100,124
Unrealized Losses
Less Than 12 Months	(131)
12 Months or Longer	0
Total, unrealized losses	(131)
Corporate bonds
Fair Value
Less Than 12 Months	31,712	9,907
12 Months or Longer	0	0
Total, fair value	31,712	9,907
Unrealized Losses
Less Than 12 Months	(85)	(1)
12 Months or Longer	0	0
Total, unrealized losses	(85)	(1)
U.S. government treasury securities
Fair Value
Less Than 12 Months	93,432	4,831
12 Months or Longer	0	0
Total, fair value	93,432	4,831
Unrealized Losses
Less Than 12 Months	(269)	0
12 Months or Longer	0	0
Total, unrealized losses	(269)	$ 0
U.S. government agency securities
Fair Value
Less Than 12 Months	83,933
12 Months or Longer	0
Total, fair value	83,933
Unrealized Losses
Less Than 12 Months	(188)
12 Months or Longer	0
Total, unrealized losses	$ (188)