Fair Value Measurements - Additional Information (Details)	9 Months Ended
	Sep. 30, 2021 USD ($)
Class Of Warrant Or Right [Line Items]
Contingent consideration as compensation expense	$ (457,000)
Fair value, assets, transfers in and out of level 1, 2 or 3	0
Fair value, liabilities, transfers in and out of level 1, 2 or 3	0
Level 1 | Money Market Deposits
Class Of Warrant Or Right [Line Items]
Cash equivalents	49,500,000
Level 3 | HGE
Class Of Warrant Or Right [Line Items]
Contingent consideration as compensation expense	$ 10,500,000