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Goodwill | 6 Months Ended
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Jan. 31, 2014
Goodwill [Abstract] |
Goodwill | (16) Goodwill The carrying amount of goodwill by segment as of January 31, 2014 and July 31, 2013 are as follows:
|  | Telecommunications Transmission |  | RF Microwave Amplifiers |  | Mobile Data Communications |  | Total
Goodwill |  | $ | 107,779,000 |  |  | 29,575,000 |  |  | 13,249,000 |  |  | $ | 150,603,000 |
Accumulated impairment |  | — |  |  | — |  |  | (13,249,000 | ) |  | (13,249,000 | )
Balance |  | $ | 107,779,000 |  |  | 29,575,000 |  |  | — |  |  | $ | 137,354,000 |
In accordance with FASB ASC 350, “Intangibles - Goodwill and Other,” we perform goodwill impairment testing at least annually, unless indicators of impairment exist in interim periods. The impairment test for goodwill uses a two-step approach. Step one compares the estimated fair value of a reporting unit with goodwill to its carrying value. If the carrying value exceeds the estimated fair value, step two must be performed. Step two compares the carrying value of the reporting unit to the fair value of all of the assets and liabilities of the reporting unit (including any unrecognized intangibles) as if the reporting unit was acquired in a business combination. If the carrying amount of a reporting unit's goodwill exceeds the implied fair value of its goodwill, an impairment loss is recognized in an amount equal to the excess. For purposes of reviewing impairment and the recoverability of goodwill and other intangible assets, each of our three operating segments constitutes a reporting unit and we must make various assumptions in determining the fair values of the reporting unit. On August 1, 2013 (the first day of our fiscal 2014), we performed our annual impairment test and estimated the fair value of each of our reporting units based on the income approach (also known as the discounted cash flow (“DCF”) method, which utilizes the present value of cash flows to estimate fair value). The future cash flows for our reporting units were projected based on our estimates, at that time, of future revenues, operating income and other factors (such as working capital and capital expenditures). We took into account expected challenging global industry and market conditions, including expected significant reductions in the overall budget for U.S. defense spending. As such, although both our telecommunications transmission and RF microwave amplifiers reporting units have historically achieved significant long-term revenue and operating income growth, we assumed growth rate estimates in our projections that were below our actual long-term expectations and below each reporting unit's actual historical growth rate. The discount rates used in our DCF method were based on a weighted-average cost of capital (“WACC”) determined from relevant market comparisons, adjusted upward for specific reporting unit risks (primarily the uncertainty of achieving projected operating cash flows). A terminal value growth rate was applied to the final year of the projected period and reflected our estimate of stable, perpetual growth. We then calculated a present value of the respective cash flows for each reporting unit to arrive at an estimate of fair value under the income approach and then used the market approach to corroborate this value. Under the market approach, we estimated a fair value based on comparable companies' market multiples of revenues and earnings before interest, taxes, depreciation and amortization and factored in a control premium. In each case, the estimated fair value determined under the market approach exceeded our estimate of fair value determined under the income approach. Finally, we compared our estimates to our August 1, 2013 total public market capitalization and assessed implied control premiums. Based on the aforementioned, we concluded that the estimated fair value determined under the income approach for each of our reporting units, as of August 1, 2013, was reasonable. In each case, the estimated fair value exceeded the respective carrying value and, as such, we concluded that the goodwill assigned to our telecommunications transmission and RF microwave amplifiers reporting units, as of August 1, 2013, was not impaired. We also concluded that our telecommunications transmission reporting unit was currently not at risk of failing step one of the goodwill impairment test as prescribed under the ASC. However, we concluded that as of August 1, 2013, our RF microwave amplifiers reporting unit was at risk of failing step one of the goodwill impairment test. As of August 1, 2013, we determined that our RF microwave amplifiers reporting unit had an estimated fair value in excess of its respective carrying value of at least 13.2%, which represents an increase from the at least 5.0% excess we previously calculated as of January 31, 2013 (when we performed an interim fiscal 2013 impairment test). The increase from 5.0% to 13.2% was primarily driven by a decrease in the WACC from 12.0% to 11.0%. The WACC for any given impairment test is based on current market data as of the respective valuation date. Had we utilized a WACC of 12.0% for the fiscal 2014 annual impairment test, our RF microwave amplifiers reporting unit's estimated fair value would still exceed its carrying value as of August 1, 2013. The WACC of 11.0% used in our annual impairment test for fiscal 2014 was equal to the WACC utilized in our annual impairment test for fiscal 2013. This estimated fair value of our RF microwave amplifiers reporting unit is closely aligned with the ultimate amount of revenue and operating income that it achieves over the projected period. Our discounted cash flows, for goodwill impairment testing purposes, assumed that, through fiscal 2019, this reporting unit would achieve a compounded annual revenue growth rate of approximately 1.0% and 4.0% from its actual fiscal 2012 and 2013 revenues of $102,497,000 and $86,939,000, respectively. Beyond fiscal 2019, we assumed a long-term revenue growth rate of 3.5% in the terminal year. Given current challenging market conditions, we believe these modest long-term growth rates and the WACC are appropriate to use for our future cash flow assumptions. We also believe that it is possible that our actual revenue growth rates could be significantly higher due to a number of factors, including: (i) continued reliance by our customers on our advanced communications systems; (ii) the continued shift toward information-based, network-centric warfare; and (iii) the need for developing countries to upgrade their communication systems. If we do not at least meet the assumed revenue growth utilized in this goodwill impairment analysis, our RF microwave amplifiers reporting unit will likely fail step one of a goodwill impairment test in a future period. Modest changes in other key assumptions used in our impairment analysis may also result in the requirement to proceed to step two of the goodwill impairment test in future periods. For example, keeping all other variables constant, a 160 basis point increase in the WACC applied to our RF microwave amplifiers reporting unit or an increase to our RF microwave amplifiers carrying value of more than $13,200,000 would likely result in a step one failure. If this reporting unit fails step one in the future, we would be required to perform step two of the goodwill impairment test. If we perform step two, up to $42,750,000 of goodwill and intangibles assigned to this reporting unit could be written off in the period that the impairment is triggered. Our goodwill impairment analyses for the telecommunications transmission and RF microwave amplifiers reporting units are sensitive to the ultimate spending decisions by our global customers. Accordingly, we will continue to monitor key assumptions and other factors required to be utilized in evaluating impairment of goodwill. It is possible that, during fiscal 2014, business conditions (both in the U.S. and internationally) could deteriorate from the current state and our current or prospective customers could materially postpone, reduce or even forgo purchases of our products and services to a greater extent than we currently anticipate. A significant decline in defense spending that is greater than we anticipate or a shift in funding priorities may also have a negative effect on future orders, sales, income and cash flows and we might be required to perform a step one interim goodwill impairment test during fiscal 2014 for these two reporting units. In any event, we are required to perform the next annual step one goodwill impairment test on August 1, 2014 (the start of our fiscal 2015). If our assumptions and related estimates change in the future, or if we change our reporting structure or other events and circumstances change (e.g., such as a sustained decrease in the price of our common stock (considered on both absolute terms and relative to peers)), we may be required to record impairment charges when we perform these tests or in other future periods. Any impairment charges that we may take in the future could be material to our results of operations and financial condition.

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