v2.4.0.6

Investments (Tables) | 12 Months Ended
--- | ---
Jul. 28, 2012
Summary of Short-term and Non-current Investments by Maturity Date | The following table summarizes the Company’s short-term and non-current investments by maturity date that were recorded in the consolidated balance sheets as of July 28, 2012 and July 30, 2011.
|  | July 28, 2012 |  |  | July 30, 2011 |
|  | <1 year |  |  | 1- 3 years |  |  | Over 3 years |  |  | Total |  |  | <1 year |  |  | 1- 3 years |  |  | Over 3 years |  |  | Total |
|  |  |  |  |  |  |  |  |  |  | (millions) |  |  |  |  |  |  |  |  |
Available-for-sale investments-short-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal bonds |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 52.7 |  |  | $ | — |  |  | $ | — |  |  | $ | 52.7 |
Restricted cash |  |  | 1.4 |  |  |  | — |  |  |  | — |  |  |  | 1.4 |  |  |  | 1.4 |  |  |  | — |  |  |  | — |  |  |  | 1.4 |
Total short-term investments |  |  | 1.4 |  |  |  | — |  |  |  | — |  |  |  | 1.4 |  |  |  | 54.1 |  |  |  | — |  |  |  | — |  |  |  | 54.1 |
Available-for-sale investments-non-current: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal bonds |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 102.7 |  |  |  | 23.8 |  |  |  | 126.5 |
Auction rate securities |  |  | — |  |  |  | — |  |  |  | 2.7 |  |  |  | 2.7 |  |  |  | — |  |  |  | — |  |  |  | 12.0 |  |  |  | 12.0 |
Total non-current available-for-sale investments |  |  | — |  |  |  | — |  |  |  | 2.7 |  |  |  | 2.7 |  |  |  | — |  |  |  | 102.7 |  |  |  | 35.8 |  |  |  | 138.5 |
Other non-current investments |  |  | 0.5 |  |  |  | — |  |  |  | — |  |  |  | 0.5 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total non-current investments |  |  | 0.5 |  |  |  | — |  |  |  | 2.7 |  |  |  | 3.2 |  |  |  | — |  |  |  | 102.7 |  |  |  | 35.8 |  |  |  | 138.5 |
Total Investments |  | $ | 1.9 |  |  | $ | — |  |  | $ | 2.7 |  |  | $ | 4.6 |  |  | $ | 54.1 |  |  | $ | 102.7 |  |  | $ | 35.8 |  |  | $ | 192.6 |

X
- Definition Tabular disclosure of 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, 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 -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, 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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration