Fair Value Measurements - Fair Value Hierarchy (Details) (USD $) | Mar. 01, 2014 | Jun. 01, 2013 |
In Millions, unless otherwise specified |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | $11.10 | $10.80 |
Financial Instruments Gross Unrealized Gains | 0 | 0 |
Financial Instruments Gross Unrealized Loss | 0 | 0 |
Available-for-sale Securities, Debt Securities, Current | 11.1 | 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 | 0.7 | 0.8 |
Financial Instruments Gross Unrealized Gains | 0 | 0 |
Financial Instruments Gross Unrealized Loss | 0 | 0 |
Available-for-sale Securities, Debt Securities, Current | 0.7 | 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 | 1.4 | 1.7 |
Financial Instruments Gross Unrealized Gains | 0 | 0 |
Financial Instruments Gross Unrealized Loss | 0 | 0 |
Available-for-sale Securities, Debt Securities, Current | 1.4 | 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 | 7.4 | 5.1 |
Financial Instruments Gross Unrealized Gains | 0 | 0 |
Financial Instruments Gross Unrealized Loss | 0 | 0 |
Available-for-sale Securities, Debt Securities, Current | 7.4 | 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 | 1.6 | 3.2 |
Financial Instruments Gross Unrealized Gains | 0 | 0 |
Financial Instruments Gross Unrealized Loss | 0 | 0 |
Available-for-sale Securities, Debt Securities, Current | 1.6 | 3.2 |
Fair Value, Measurements, Recurring [Member] | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Assets, Fair Value Disclosure | 17.3 | 15.9 |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 0.3 | 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 | 6.1 | 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 | 0.3 | 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 | 0.7 | 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 | 1.4 | 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 | 7.4 | 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 | $1.60 | $3.20 |