Acquisitions, Goodwill and Intangible Assets (Tables)
 12 Months Ended
Oct. 31, 2011
Acquisitions Goodwill And Intangible Assets Disclosure Table [Abstract]  
Schedule of goodwill activity
 (in thousands) 20112010
 Balance, beginning of period  $ 135,786$ 135,786
 Goodwill acquired    6,516  -
 Balance, end of period  $ 142,302$ 135,786
Intangible assets table
 October 31, 2011        
 (dollars in thousands)Weighted-average remaining amortization period (in years)Gross carrying amountAccumulated amortizationNet carrying amount
          
 Amortizing intangible assets:        
  Client relationships acquired7.9 $ 110,327$(50,749)$ 59,578
  Intellectual property acquired14.6   1,000  (62)  938
          
 Non-amortizing intangible assets:        
  Mutual fund management contract acquired    6,708  -  6,708
 Total  $ 118,035$(50,811)$ 67,224

 October 31, 2010        
 (dollars in thousands)Weighted-average remaining amortization period (in years)Gross carrying amountAccumulated amortizationNet carrying amount
          
 Amortizing intangible assets:        
  Client relationships acquired8.8 $ 109,177$(42,867)$ 66,310
          
 Non-amortizing intangible assets:        
  Mutual fund management contract acquired    6,708  -  6,708
 Total  $ 115,885$(42,867)$ 73,018
Schedule of expected amortization expense for the next five years
 Year Ending October 31,  Estimated Amortization
 (in thousands)  Expense
 2012$ 7,995
 2013  7,995
 2014  7,968
 2015  7,743
 2016  7,301