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Property and Equipment (Tables) | 6 Months Ended
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Jan. 26, 2013
Property, Plant and Equipment [Abstract] |
Schedule of Property and Equipment | Property and equipment consists of the following:
|  | January 26, 2013 |  | July 28, 2012
|  | (Dollars in thousands)
Land |  | $ | 3,479 |  |  | $ | 2,915 |
Buildings |  | 11,411 |  |  | 10,630 |
Leasehold improvements |  | 5,039 |  |  | 4,674 |
Vehicles |  | 235,496 |  |  | 220,669 |
Computer hardware and software |  | 62,156 |  |  | 57,965 |
Office furniture and equipment |  | 7,203 |  |  | 5,552 |
Equipment and machinery |  | 158,333 |  |  | 133,467 |
Total |  | 483,117 |  |  | 435,872 |
Less: accumulated depreciation |  | (295,875 | ) |  | (277,625 | )
Property and equipment, net |  | $ | 187,242 |  |  | $ | 158,247 |
Schedule of Depreciation, Repairs, and Maintenance Expense [Table Text Block] | Depreciation expense and repairs and maintenance were as follows:
| For the Three Months Ended |  | For the Six Months Ended
| January 26, 2013 |  | January 28, 2012 |  | January 26, 2013 |  | January 28, 2012
| (Dollars in thousands)
Depreciation expense | $ | 15,868 |  |  | $ | 13,911 |  |  | $ | 29,588 |  |  | $ | 28,179 |
Repairs and maintenance expense | $ | 4,376 |  |  | $ | 3,704 |  |  | $ | 8,188 |  |  | $ | 8,237 |

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- Definition Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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