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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Jan. 28, 2017
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 | 2,501 |  |  | — |  |  | 2,501 |
Balance as of January 28, 2017 | $ | 508,425 |  |  | $ | (195,767 | ) |  | $ | 312,658 |
Impairment Calculation Rates | The table below outlines certain assumptions in each of the Company’s fiscal 2016, 2015, and 2014 annual quantitative impairment analyses:
| 2016 |  | 2015 |  | 2014
Terminal Growth Rate | 2.0% - 3.0% |  | 1.5% - 2.5% |  | 1.5% - 3.0%
Discount Rate | 11.5% |  | 11.5% |  | 11.5%
Schedule of Intangible Assets | The Company’s intangible assets consisted of the following (dollars in thousands):
| Weighted Average Remaining Useful Lives (Years) |  | January 28, 2017 |  | July 30, 2016
Gross carrying amount: |  |  |  |  |
Customer relationships | 12.3 |  | $ | 289,917 |  |  | $ | 289,955 |
Contract backlog | — |  | — |  |  | 4,780 |
Trade names | 7.6 |  | 9,650 |  |  | 9,800 |
UtiliQuest trade name | — |  | 4,700 |  |  | 4,700 |
Non-compete agreements | 2.4 |  | 685 |  |  | 685 |
|  |  | 304,952 |  |  | 309,920 |
Accumulated amortization: |  |  |  |  |  |  |
Customer relationships |  |  | 112,395 |  |  | 101,012 |
Contract backlog |  |  | — |  |  | 4,666 |
Trade names |  |  | 6,556 |  |  | 6,034 |
Non-compete agreements |  |  | 433 |  |  | 329 |
|  |  | 119,384 |  |  | 112,041 |
Intangible assets, net |  |  | $ | 185,568 |  |  | $ | 197,879 |

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