Commitments and Contingencies (Details) (USD $)
12 Months Ended
Oct. 31, 2011
Oct. 31, 2010
Oct. 31, 2009
Commitments And Contingencies Disclosure Details [Abstract]      
Private equity partnership commitments $ 15,000,000    
Total private equity invested capital 13,800,000    
Total remaining commitment expected to be invested 1,200,000    
The date the remaining commitment is expected to be invested by March 2015    
Operating Leases, Rent Expense, Net [Abstract]      
Current year rent expense 20,100,000 19,900,000 22,900,000
Future minimum lease commitments      
2012 19,286,000    
2013 19,790,000    
2014 20,309,000    
2015 20,114,000    
2016 - thereafter 331,944,000    
Total 411,443,000    
Rental income received from subleases 1,300,000 800,000  
Future minimum rent receipts      
2012 1,278,000    
2013 1,022,000    
2014 971,000    
2015 971,000    
2016 - thereafter 291,000    
Total $ 4,533,000