Annual report pursuant to section 13 and 15(d)

Notes Receivable from Financial Advisors - Additional Information (Detail)

v2.4.0.6
Notes Receivable from Financial Advisors - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Notes, Loans and Financing Receivable, Gross, Current 39,148 44,308
Allowance for Doubtful Accounts Receivable, Current 628 339
Minimum [Member]
   
Short-term Debt, Percentage Bearing Variable Interest Rate 0.00%  
Loan Amortized Over Forgiveness Period 3 Years 3 Years
Maximum [Member]
   
Short-term Debt, Percentage Bearing Variable Interest Rate 8.00%  
Loan Amortized Over Forgiveness Period 5 Years 5 Years
Securities America Financial Advisor [Member]
   
Loans Receivable, Net 20,000