Short-Term Investments - Contractual Maturities of Available - For- Sale Debt Securities (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Cash Cash Equivalents And Short Term Investments [Line Items]
Within One Year	$ 246,220
One to Two Years	124,192
Two to Three Years	38,632
Estimated Fair Value	409,044
U.S. Government-sponsored enterprises
Cash Cash Equivalents And Short Term Investments [Line Items]
Within One Year	86,875
One to Two Years	56,647
Two to Three Years	38,632
Estimated Fair Value	182,154
U.S. Treasury securities
Cash Cash Equivalents And Short Term Investments [Line Items]
Within One Year	74,214
One to Two Years	40,790
Two to Three Years	0
Estimated Fair Value	115,004
Commercial paper
Cash Cash Equivalents And Short Term Investments [Line Items]
Within One Year	72,511
One to Two Years	0
Two to Three Years	0
Estimated Fair Value	72,511
Corporate debt securities
Cash Cash Equivalents And Short Term Investments [Line Items]
Within One Year	12,620
One to Two Years	26,755
Two to Three Years	0
Estimated Fair Value	$ 39,375