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Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified | Mar. 01, 2014 | Mar. 02, 2013
--- | --- | ---
Cash equivalents |  |
Total cash equivalents | $ 12,788 | $ 17,639
Available for sale securities |  |
Total available for sale securities | 11,477 | 38,814
Restricted investments |  |
Total restricted investments | 2,540 | 26,443
Mutual fund investments |  |
Total mutual fund investments | 409 | 251
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 98 |
Total assets at fair value | 27,312 | 83,147
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Total liabilities at fair value |  | 405
Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 12,788 | 17,639
Restricted investments |  |
Total restricted investments | 2,540 | 26,443
Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 11,477 | 38,814
Mutual funds |  |
Mutual fund investments |  |
Total mutual fund investments | 409 | 251
Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 98 |
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure |  | 405
Quoted Prices in Active Markets (Level 1) |  |
Cash equivalents |  |
Total cash equivalents | 12,788 | 17,639
Available for sale securities |  |
Total available for sale securities | 0 | 0
Restricted investments |  |
Total restricted investments | 2,540 | 26,443
Mutual fund investments |  |
Total mutual fund investments | 409 | 251
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 |
Total assets at fair value | 15,737 | 44,333
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Total liabilities at fair value |  | 0
Quoted Prices in Active Markets (Level 1) | Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 12,788 | 17,639
Restricted investments |  |
Total restricted investments | 2,540 | 26,443
Quoted Prices in Active Markets (Level 1) | Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 0 | 0
Quoted Prices in Active Markets (Level 1) | Mutual funds |  |
Mutual fund investments |  |
Total mutual fund investments | 409 | 251
Quoted Prices in Active Markets (Level 1) | Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 |
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure |  | 0
Other Observable Inputs (Level 2) |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Available for sale securities |  |
Total available for sale securities | 11,477 | 38,814
Restricted investments |  |
Total restricted investments | 0 | 0
Mutual fund investments |  |
Total mutual fund investments | 0 | 0
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 98 |
Total assets at fair value | 11,575 | 38,814
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Total liabilities at fair value |  | 405
Other Observable Inputs (Level 2) | Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Restricted investments |  |
Total restricted investments | 0 | 0
Other Observable Inputs (Level 2) | Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 11,477 | 38,814
Other Observable Inputs (Level 2) | Mutual funds |  |
Mutual fund investments |  |
Total mutual fund investments | 0 | 0
Other Observable Inputs (Level 2) | Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 98 |
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure |  | 405
Unobservable Inputs (Level 3) |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Available for sale securities |  |
Total available for sale securities | 0 | 0
Restricted investments |  |
Total restricted investments | 0 | 0
Mutual fund investments |  |
Total mutual fund investments | 0 | 0
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 |
Total assets at fair value | 0 | 0
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Total liabilities at fair value |  | 0
Unobservable Inputs (Level 3) | Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Restricted investments |  |
Total restricted investments | 0 | 0
Unobservable Inputs (Level 3) | Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 0 | 0
Unobservable Inputs (Level 3) | Mutual funds |  |
Mutual fund investments |  |
Total mutual fund investments | 0 | 0
Unobservable Inputs (Level 3) | Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 |
Derivative Instruments and Hedges, Liabilities (Abstract) |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure |  | $ 0

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
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