XML 42 R41.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements - Fair Value Hierarchy (Details) (USD $)
In Millions, unless otherwise specified
Aug. 31, 2013
Jun. 01, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale Debt Securities, Amortized Cost Basis $ 11.0 $ 10.8
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss 0 0
Available-for-sale Securities, Debt Securities, Current 11.0 10.8
Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale Debt Securities, Amortized Cost Basis 1.0 0.8
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss 0 0
Available-for-sale Securities, Debt Securities, Current 1.0 0.8
Corporate Debt Securities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale Debt Securities, Amortized Cost Basis 1.7 1.7
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss 0 0
Available-for-sale Securities, Debt Securities, Current 1.7 1.7
US Treasury and Government [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale Debt Securities, Amortized Cost Basis 5.1 5.1
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss 0 0
Available-for-sale Securities, Debt Securities, Current 5.1 5.1
Collateralized Mortgage Backed Securities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale Debt Securities, Amortized Cost Basis 3.2 3.2
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss 0 0
Available-for-sale Securities, Debt Securities, Current 3.2 3.2
Fair Value, Measurements, Recurring [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure 16.3 15.9
Financial and Nonfinancial Liabilities, Fair Value Disclosure 0.1 0.3
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Deferred Compensation Plan Fair Value Disclosure 5.2 4.8
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Foreign Currency Contract, Asset, Fair Value Disclosure 0.1 0.3
Foreign Currency Contracts, Liability, Fair Value Disclosure 0.1 0.3
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Asset-backed securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale marketable securities 1.0 0.8
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale marketable securities 1.7 1.7
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale marketable securities 5.1 5.1
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Available-for-sale marketable securities $ 3.2 $ 3.2