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Tax Effects of Temporary Differences that Give Rise to Significant Portions of Deferred Tax Assets and Deferred Tax Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Oct. 31, 2009
Deferred tax assets:        
Self-insurance claims (net of recoverables) $ 109,516 $ 103,125    
Deferred and other compensation 30,221 28,897    
Accounts receivable allowances 3,967 3,822    
Settlement liabilities 3,288 1,999    
State taxes 727 908    
Federal net operating loss carryforwards   15,485    
State net operating loss carryforwards 8,596 8,348    
Tax credits 7,802 6,480    
Other 7,758 8,220    
Deferred Tax Assets, Gross, Total 171,875 177,284    
Less: Valuation allowance 6,026 5,784 6,290 6,147
Total deferred tax assets 165,849 171,500    
Deferred tax liabilities:        
Property, plant and equipment (2,767) (8,579)    
Goodwill and other acquired intangibles (101,801) (91,408)    
Total deferred tax liabilities (104,568) (99,987)    
Net deferred tax assets $ 61,281 $ 71,513