Quarterly report [Sections 13 or 15(d)]

Notes Receivable from Partners - Schedule of Notes Receivable from Partners (Detail)

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Notes Receivable from Partners - Schedule of Notes Receivable from Partners (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Dec. 31, 2025
Accounts Notes And Loans Receivable [Line Items]                
Interest accrued and capitalized on notes receivable $ 6 $ 6 $ 6 $ 5 $ 5 $ 4    
Partners                
Accounts Notes And Loans Receivable [Line Items]                
Beginning balance     $ 630     $ 251 $ 630 $ 251
New notes issued to partners             160 485
Repayment of notes             (173) (126)
Interest accrued and capitalized on notes receivable             18 20
Ending balance $ 635           $ 635 $ 630