Fixed Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Property, Plant, and Equipment [Line Items]
Depreciation expense	$ 0.1	$ 0.1	$ 0.1	$ 0.2
Maximum [Member]
Property, Plant, and Equipment [Line Items]
Depreciation expenses related to sublet assets	$ 0.1	$ 0.1	$ 0.1	$ 0.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details