Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Selected Balance Sheet Data - Components of Deferred Compensation and Commissions (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]    
Stock appreciation rights ("SARs") liability $ 1,734 $ 1,366
Commissions payable to investment sales and financing professionals 20,872 42,781
Deferred compensation liability 759 607
Total 23,365 44,754
Stock appreciation rights ("SARs") liability 19,447 20,949
Commissions payable to investment sales and financing professionals 11,006 17,101
Deferred compensation liability 7,496 6,405
Total $ 37,949 $ 44,455