Fair Value Measurements - Summary of Financial Assets Measured at Fair Value (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value Measurements
Contingent consideration, current	$ 0	$ 2,459
Total liabilities	0	2,459
Level 1
Fair Value Measurements
Cash equivalents	256,715	262,309
Total assets	256,715	262,309
Contingent consideration, current	0	0
Total liabilities	0	0
Level 2
Fair Value Measurements
Cash equivalents	0	0
Total assets	0	0
Contingent consideration, current	0	0
Total liabilities	0	0
Level 3
Fair Value Measurements
Cash equivalents	0	0
Total assets	0	0
Contingent consideration, current	0	2,459
Total liabilities	0	2,459
Total fair value
Fair Value Measurements
Cash equivalents	256,715	262,309
Total assets	$ 256,715	$ 262,309