Commitments and Contingencies - Schedule of Operating Lease Cost and Variable Lease Costs and Sub Lease Income (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Fixed lease costs	$ 772	$ 749
Variable lease costs	33	55
Total lease costs	$ 805	$ 804