Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value of Financial Liabilities
Carrying amount of cash and cash equivalents and short term investments	$ 319,130	$ 275,846
Fair value of financial assets and liabilities
Marketable Securities	157,460	215,765
Derivative liability	360	1,150
Corporate Debt Securities and Commercial Paper
Fair value of financial assets and liabilities
Marketable Securities	157,460	215,765
Recurring | Estimated fair value
Fair value of financial assets and liabilities
Fair value of assets	306,945	261,612
Derivative liability	360	1,150
Recurring | Derivative on Royalty Financing | Estimated fair value
Fair value of financial assets and liabilities
Derivative liability	360	1,150
Recurring | Commercial Paper | Estimated fair value
Fair value of financial assets and liabilities
Cash Equivalents	51,230
Recurring | Corporate Debt Securities and Commercial Paper | Estimated fair value
Fair value of financial assets and liabilities
Marketable Securities	157,461	215,765
Recurring | Money Market Funds | Estimated fair value
Fair value of financial assets and liabilities
Cash Equivalents	98,254	45,847
Recurring | Level 1 | Estimated fair value
Fair value of financial assets and liabilities
Fair value of assets	98,254	40,868
Recurring | Level 1 | Money Market Funds | Estimated fair value
Fair value of financial assets and liabilities
Cash Equivalents	98,254	40,868
Recurring | Level 2 | Estimated fair value
Fair value of financial assets and liabilities
Fair value of assets	208,691	220,744
Recurring | Level 2 | Commercial Paper | Estimated fair value
Fair value of financial assets and liabilities
Cash Equivalents	51,230
Recurring | Level 2 | Corporate Debt Securities and Commercial Paper | Estimated fair value
Fair value of financial assets and liabilities
Marketable Securities	157,461	215,765
Recurring | Level 2 | Money Market Funds | Estimated fair value
Fair value of financial assets and liabilities
Cash Equivalents		4,979
Recurring | Level 3 | Estimated fair value
Fair value of financial assets and liabilities
Derivative liability	360	1,150
Recurring | Level 3 | Derivative on Royalty Financing | Estimated fair value
Fair value of financial assets and liabilities
Derivative liability	$ 360	$ 1,150