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Goodwill and Intangible Assets (Notes) | 9 Months Ended
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Apr. 27, 2013
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | Goodwill and Intangible Assets Goodwill The Company's goodwill balance was $260.7 million and $174.8 million as of April 27, 2013 and July 28, 2012, respectively. Changes in the carrying amount of goodwill for fiscal 2013 are as follows:
|  |  |  | Nine Months Ended April 27, 2013 |  |
|  | As of |  | Impairment |  |  |  | As of
|  | July 28, 2012 |  | Losses |  | Acquisitions |  | April 27, 2013
|  | (Dollars in thousands)
Goodwill |  | $ | 370,616 |  |  | $ | — |  |  | $ | 85,859 |  |  | $ | 456,475 |
Accumulated impairment losses |  | (195,767 | ) |  | — |  |  | — |  |  | (195,767 | )
|  | $ | 174,849 |  |  | $ | — |  |  | $ | 85,859 |  |  | $ | 260,708 |
The carrying value of goodwill increased as a result of the December 3, 2012 acquisition of substantially all of the telecommunications infrastructure service subsidiaries of Quanta Services, Inc. The Company's goodwill resides in multiple reporting units. The reporting units and related indefinite-lived intangible assets are tested annually during the fourth fiscal quarter of each year in accordance with ASC Topic 350, Intangibles - Goodwill and Other, in order to determine whether their carrying value exceeds their fair value. The inputs used for fair value measurements of the reporting units and related indefinite-lived intangible assets are the lowest level (Level 3) inputs. The profitability of individual reporting units may periodically suffer from downturns in customer demand and other factors resulting from the cyclical nature of the Company's business, the high level of competition existing within the Company's industry, the concentration of the Company's revenues from a limited number of customers, and the level of overall economic activity. During times of slowing economic conditions, the Company's customers may reduce capital expenditures and defer or cancel pending projects. Individual reporting units may be relatively more impacted by these factors than the Company as a whole. As a result, demand for the services of one or more of the Company's reporting units could decline resulting in an impairment of goodwill or intangible assets. As a result of the fiscal 2012 annual impairment analysis, the Company concluded that no impairment of goodwill or the indefinite-lived intangible asset was indicated at any reporting unit. However, the UtiliQuest reporting unit, having a goodwill balance of approximately $35.6 million and an indefinite-lived trade name of $4.7 million, has recently been at lower operating levels as compared to historical levels. During the fiscal 2012 annual impairment analysis, the estimated fair value of the UtiliQuest reporting unit exceeded its carrying value but the margin of excess had declined to less than 30%. The UtiliQuest reporting unit provides services to a broad range of customers including utilities and telecommunication providers. These services are required prior to underground excavation and are influenced by overall economic activity, including construction activity. The goodwill balance of this reporting unit may have an increased likelihood of impairment if a downturn in customer demand were to occur, or if the reporting unit were not able to execute against customer opportunities, and the long-term outlook for their cash flows were adversely impacted. Furthermore, changes in the long-term outlook may result in changes to other valuation assumptions. As of April 27, 2013, the Company believes the goodwill and the indefinite-lived intangible asset is recoverable for all of the reporting units; however, there can be no assurances that goodwill and the indefinite-lived intangible asset will not be impaired in future periods. Intangible Assets The Company's intangible assets consist of the following:
| Weighted Average Remaining Useful Lives |  | April 27, 2013 |  | July 28, 2012
| (Years) |  | (Dollars in thousands)
Carrying amount: |  |  |  |  |
Customer relationships | 12.5 |  | $ | 160,645 |  |  | $ | 89,145 |
Contract backlog | 2.5 |  | 14,410 |  |  | — |
Trade names | 5.3 |  | 8,025 |  |  | 2,860 |
UtiliQuest trade name | — |  | 4,700 |  |  | 4,700 |
Non-compete agreements | 2.7 |  | 150 |  |  | 150 |
|  |  | 187,930 |  |  | 96,855 |
Accumulated amortization: |  |  |  |  |  |  |
Customer relationships |  |  | 53,335 |  |  | 45,852 |
Contract backlog |  |  | 5,497 |  |  | — |
Trade names |  |  | 1,774 |  |  | 1,182 |
Non-compete agreements |  |  | 72 |  |  | 48 |
Net Intangible Assets |  |  | $ | 127,252 |  |  | $ | 49,773 |
Amortization of the Company's intangible assets of customer relationships and contract backlog is recognized on an accelerated basis related to the expected economic benefit. As a result, the weighted average remaining useful lives for these intangible assets is not representative of the average period in which the amortization expense will be recognized. Amortization for the Company's other finite-lived intangibles is recognized on a straight-line basis over the estimated useful life of the intangible assets. The carrying amount of customer relationships, contract backlog, and trade names increased $71.5 million, $14.4 million, and $5.2 million, respectively, during fiscal 2013 as a result of the preliminary allocation of the purchase price of the Acquired Subsidiaries. The acquired customer relationships, contract backlog, and trade names have been assigned a preliminary estimated useful life of 15 years, 1-4 years (based on remaining contract values), and 5 years, respectively. Amortization expense for finite-lived intangible assets for the three months ended April 27, 2013 and April 28, 2012 was $7.1 million and $1.6 million, respectively. Amortization expense for finite-lived intangible assets for the nine months ended April 27, 2013 and April 28, 2012 was $13.6 million and $4.9 million, respectively. Estimated total amortization expense for the remainder of fiscal 2013 and each of the five succeeding fiscal years is as follows (including amortization for the newly acquired subsidiaries based on the preliminary purchase allocation as of April 27, 2013):
Period |  | Amount
|  | (Dollars in thousands)
Three months ending July 27, 2013 |  | $7,056
Fiscal 2014 |  | $18,110
Fiscal 2015 |  | $15,241
Fiscal 2016 |  | $14,427
Fiscal 2017 |  | $13,088
Fiscal 2018 |  | $10,766
Thereafter |  | $43,864
As of April 27, 2013, the Company believes that the carrying amounts of the intangible assets are recoverable. However, if adverse events were to occur or circumstances were to change indicating that the carrying amount of such assets may not be fully recoverable, the assets would be reviewed for impairment and the assets could be impaired.

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- Definition The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16373-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 43, 44, 45, 46, 47 -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 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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