Quarterly report pursuant to Section 13 or 15(d)

Selected Balance Sheet Data - Components of Deferred Compensation and Commissions (Detail)

v3.21.2
Selected Balance Sheet Data - Components of Deferred Compensation and Commissions (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Deferred Compensation and Commissions [Line Items]    
Stock appreciation rights ("SARs") liability, current $ 2,241 $ 2,162
Commissions payable to investment sales and financing professionals, current 49,175 54,082
Deferred compensation liability, current 1,132 1,519
Other, current 520 343
Deferred compensation and commissions, current 53,068 58,106
Stock appreciation rights ("SARs") liability, non-current 14,796 16,671
Commissions payable to investment sales and financing professionals, non-current 17,012 15,306
Deferred compensation liability, non-current 6,830 6,768
Other, non-current 0 0
Deferred compensation and commissions, non-current $ 38,638 $ 38,745