Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Selected Balance Sheet Data - Components of Deferred Compensation and Commissions (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Organization Consolidation And Presentation Of Financial Statements [Abstract]    
Commissions payable $ 6,070 $ 6,700
Deferred compensation liability 3,360 2,421
Total $ 9,430 $ 9,121