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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Oct. 29, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | Changes in the carrying amount of goodwill for fiscal 2017 were as follows (dollars in thousands):
| Goodwill |  | Accumulated Impairment Losses |  | Total
Balance as of July 30, 2016 | $ | 505,924 |  |  | $ | (195,767 | ) |  | $ | 310,157 |
Purchase price allocation adjustments | (1,488 | ) |  | — |  |  | (1,488 | )
Balance as of October 29, 2016 | $ | 504,436 |  |  | $ | (195,767 | ) |  | $ | 308,669 |
Schedule of Intangible Assets | The Company’s intangible assets consisted of the following (dollars in thousands):
| Weighted Average Remaining Useful Lives (In years) |  | October 29, 2016 |  | July 30, 2016
Gross carrying amount: |  |  |  |  |
Customer relationships | 12.5 |  | $ | 289,917 |  |  | $ | 289,955 |
Contract backlog | 0.1 |  | 4,780 |  |  | 4,780 |
Trade names | 7.3 |  | 9,650 |  |  | 9,800 |
UtiliQuest trade name | — |  | 4,700 |  |  | 4,700 |
Non-compete agreements | 2.4 |  | 685 |  |  | 685 |
|  |  | 309,732 |  |  | 309,920 |
Accumulated amortization: |  |  |  |  |  |  |
Customer relationships |  |  | 106,716 |  |  | 101,012 |
Contract backlog |  |  | 4,751 |  |  | 4,666 |
Trade names |  |  | 6,220 |  |  | 6,034 |
Non-compete agreements |  |  | 381 |  |  | 329 |
|  |  | 118,068 |  |  | 112,041 |
Intangible assets, net |  |  | $ | 191,664 |  |  | $ | 197,879 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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