Equipment and Leasehold Improvements (Details) (USD $)
12 Months Ended
Oct. 31, 2011
Oct. 31, 2010
Oct. 31, 2009
Equipment and Leasehold Improvements      
Equipment $ 70,546,000 $ 70,584,000  
Leasehold improvements 51,056,000 45,805,000  
Subtotal 121,602,000 116,389,000  
Accumulated depreciation and amortization (54,375,000) (45,170,000)  
Equipment and leasehold improvements, net 67,227,000 71,219,000  
Depreciation and amortization expense $ 15,800,000 $ 15,400,000 $ 14,100,000