Restructuring and Other Charges - Additional Information (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2023 USD ($) Employees
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 3,832	$ 3,832
Purchase Agreement [Member] | Eversurance, LLC [Member]
Restructuring Cost and Reserve [Line Items]
Long-lived assets	1,100	$ 1,100
Reduction Plan [Member]
Restructuring Cost and Reserve [Line Items]
Number of employee positions estimated to be eliminated in workforce reduction | Employees		175
Percentage of workforce eliminated		28.00%
Restructuring charges	3,800	$ 3,832
Reduction Plan [Member] | Employee Separation Payments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,700	2,709
Reduction Plan [Member] | Non-cash Compensation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,100	$ 1,123