Commitments and Contingencies (Details) (USD $)
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Commitments And Contingencies Disclosure Details [Abstract]      
Private equity partnership commitments $ 15,000,000    
Total private equity invested capital 13,900,000    
Total remaining commitment expected to be invested 1,100,000    
The date the remaining commitment is expected to be invested by March 2015    
Operating Leases, Rent Expense, Net [Abstract]      
Current year rent expense 20,500,000 20,100,000 19,900,000
Future minimum lease commitments      
2013 20,076,000    
2014 20,624,000    
2015 20,458,000    
2016 19,169,000    
2017 19,064,000    
2018 - thereafter 295,729,000    
Total 395,120,000    
Rental income received from subleases 1,300,000 1,300,000 800,000
Future minimum rent receipts      
2013 1,022,000    
2014 971,000    
2015 971,000    
2016 291,000    
Total $ 3,255,000