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Property and Equipment (Tables) | 12 Months Ended
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Jul. 29, 2017
Property, Plant and Equipment [Abstract] |
Schedule of Property and Equipment | Property and equipment consisted of the following (dollars in thousands):
| Estimated Useful Lives (Years) |  | July 29, 2017 |  | July 30, 2016
Land | — |  | $ | 3,470 |  |  | $ | 3,475 |
Buildings | 10-35 |  | 12,073 |  |  | 11,969 |
Leasehold improvements | 1-10 |  | 13,912 |  |  | 13,753 |
Vehicles | 1-5 |  | 496,820 |  |  | 404,273 |
Computer hardware and software | 1-7 |  | 107,779 |  |  | 95,570 |
Office furniture and equipment | 1-10 |  | 12,226 |  |  | 10,374 |
Equipment and machinery | 1-10 |  | 288,993 |  |  | 242,079 |
Total |  |  | 935,273 |  |  | 781,493 |
Less: accumulated depreciation |  |  | (513,166 | ) |  | (454,823 | )
Property and equipment, net |  |  | $ | 422,107 |  |  | $ | 326,670 |
Depreciation expense and repairs and maintenance were as follows (dollars in thousands):
| Fiscal Year Ended
| 2017 |  | 2016 |  | 2015
Depreciation expense | $ | 123,125 |  |  | $ | 105,514 |  |  | $ | 79,331 |
Repairs and maintenance expense | $ | 31,272 |  |  | $ | 29,487 |  |  | $ | 22,054 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: 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 2: 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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