Significant Accounting Policies and Concentrations of Risk (Details) - USD ($) shares in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Significant Accounting Policies and Concentration of Risk [Line Items]
Restricted cash	$ 1,795,000		$ 1,804,000
Long-term investment maturity, minimum (in years)	12 months
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	44,999	55,208
Reclassification from accumulated other comprehensive income, current period, before tax	$ 0	$ 0
Computer Equipment
Significant Accounting Policies and Concentration of Risk [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Laboratory Equipment, Office Equipment and Software
Significant Accounting Policies and Concentration of Risk [Line Items]
Property, plant and equipment, useful life (in years)	5 years
Furniture and Fixtures
Significant Accounting Policies and Concentration of Risk [Line Items]
Property, plant and equipment, useful life (in years)	5 years
Maximum
Significant Accounting Policies and Concentration of Risk [Line Items]
Maturity period of high quality marketable securities (in years)	3 years
Average maturity period of high quality marketable securities (in months)	12 months
Maturity period of short term investment (in months)	12 months
Collateral for Credit
Significant Accounting Policies and Concentration of Risk [Line Items]
Restricted cash	$ 1,508,000		$ 1,493,000