Commitments and Contingencies - Additional Information (Detail) - Letter of Credit	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) CreditFacility
Commitments and Contingencies Disclosure [Line Items]
Number of letters of credit issued to secure office space leases (credit facility) | CreditFacility		4
Amount outstanding on letters of credit	$ 6,900,000	$ 7,200,000
Proceeds from lines of credit	$ 0	$ 0