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Business Segments and Geographic Information - Summary of Revenue from External Customers (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Revenues	$ 48,496	$ 51,839	$ 145,910	$ 148,196
United States [Member]
Segment Reporting Information [Line Items]
Revenues	48,078	51,043	144,412	145,674
Canada [Member]
Segment Reporting Information [Line Items]
Revenues	112	198	388	800
India and Other [Member]
Segment Reporting Information [Line Items]
Revenues	$ 306	$ 598	$ 1,110	$ 1,722

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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