Goodwill and Acquired Intangible Assets - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Units	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Aug. 31, 2023 USD ($)
Indefinite-Lived Intangible Assets [Line Items]
Impairment loss	$ 0
Number of Reporting Units | Units	1
Amortization expense for intangible assets	$ 1,800	$ 2,300	$ 1,700
Changes to goodwill	0	0
Gross Amount	8,600	12,470
Accumulated Amortization	3,412	4,515
Carrying Value	$ 5,188	$ 7,955
Eversurance, LLC [Member]
Indefinite-Lived Intangible Assets [Line Items]
Gross Amount				$ 3,900
Accumulated Amortization				2,900
Carrying Value				$ 1,000