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Office Facilities (Tables)
12 Months Ended
Dec. 31, 2013
Property Plant And Equipment [Abstract]  
Schedule of Office Facilities
(Expressed in thousands)  
     Year Ended December 31,  
     2013     2012  

Furniture, fixtures and equipment

   $ 76,857      $ 70,432   

Leasehold improvements

     53,200        46,927   
  

 

 

   

 

 

 

Total

     130,057        117,359   

Less accumulated depreciation

     (97,118     (89,027
  

 

 

   

 

 

 

Total

   $ 32,939      $ 28,332