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Standby Letters of Credit, Surety Bonds and Restricted Insurance Deposits Outstanding to Collaterize Self-Insurance Obligations (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2013
Oct. 31, 2012
Letters Of Credit [Line Items]    
Surety bonds $ 311,600  
Self Insurance Programs
   
Letters Of Credit [Line Items]    
Standby Letters of Credit 103,992 104,968
Surety bonds 42,463 34,933
Restricted Insurance Deposits 27,982 31,720
Total $ 174,437 $ 171,621