Financial Instruments and Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Assets:
Total assets	$ 97,685
U.S. Treasury securities
Assets:
Total assets	43,245
Money Market Funds
Assets:
Total assets	29,386
Reverse Repurchase Agreements
Assets:
Total assets	10,000
Commercial paper
Assets:
Total assets	6,958
Corporate bonds
Assets:
Total assets	8,096
Level 1
Assets:
Total assets	72,631
Level 1 | U.S. Treasury securities
Assets:
Total assets	43,245
Level 1 | Money Market Funds
Assets:
Total assets	29,386
Level 2
Assets:
Total assets	25,054
Level 2 | Reverse Repurchase Agreements
Assets:
Total assets	10,000
Level 2 | Commercial paper
Assets:
Total assets	6,958
Level 2 | Corporate bonds
Assets:
Total assets	$ 8,096