Fair Value Measurements - Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Short-term liabilities:
Contingent consideration	$ 2,065	$ 2,114
Corporate debt securities
Assets
Corporate debt securities	500	500
Recurring
Assets
Total	164,208	338,864
Short-term liabilities:
Contingent consideration	2,065	2,114
Long-term liabilities:
Contingent consideration	3,090	3,227
Common stock warrant liability	112	139
Total	5,267	5,480
Recurring | Money market funds
Assets
Cash equivalents	160,958	335,107
Recurring | Corporate equity securities
Assets
Corporate equity securities	2,750	3,257
Recurring | Corporate debt securities
Assets
Corporate debt securities	500	500
Fair Value Measured Using - (Level 1) | Recurring
Assets
Total	163,708	338,364
Short-term liabilities:
Contingent consideration	0	0
Long-term liabilities:
Contingent consideration	0	0
Common stock warrant liability	0	0
Total	0	0
Fair Value Measured Using - (Level 1) | Recurring | Money market funds
Assets
Cash equivalents	160,958	335,107
Fair Value Measured Using - (Level 1) | Recurring | Corporate equity securities
Assets
Corporate equity securities	2,750	3,257
Fair Value Measured Using - (Level 1) | Recurring | Corporate debt securities
Assets
Corporate debt securities	0	0
Fair Value Measured Using - (Level 2) | Recurring
Assets
Total	500	500
Short-term liabilities:
Contingent consideration	0	0
Long-term liabilities:
Contingent consideration	0	0
Common stock warrant liability	0	0
Total	0	0
Fair Value Measured Using - (Level 2) | Recurring | Money market funds
Assets
Cash equivalents	0	0
Fair Value Measured Using - (Level 2) | Recurring | Corporate equity securities
Assets
Corporate equity securities	0	0
Fair Value Measured Using - (Level 2) | Recurring | Corporate debt securities
Assets
Corporate debt securities	500	500
Fair Value Measured Using - (Level 3) | Recurring
Assets
Total	0	0
Short-term liabilities:
Contingent consideration	2,065	2,114
Long-term liabilities:
Contingent consideration	3,090	3,227
Common stock warrant liability	112	139
Total	5,267	5,480
Fair Value Measured Using - (Level 3) | Recurring | Money market funds
Assets
Cash equivalents	0	0
Fair Value Measured Using - (Level 3) | Recurring | Corporate equity securities
Assets
Corporate equity securities	0	0
Fair Value Measured Using - (Level 3) | Recurring | Corporate debt securities
Assets
Corporate debt securities	$ 0	$ 0