Concentration of Credit Risk

9 Months Ended

Apr. 26, 2014

The Company’s customer base is highly concentrated, with its top five customers accounting for approximately 58.5% and 58.6% of its total revenues during the nine months ended April 26, 2014 and April 27, 2013, respectively. Revenues from three of the top five customers exceeded 10% of total revenue during the three or nine months ended April 26, 2014 or April 27, 2013:



	For the Three Months Ended		For the Nine Months Ended
	April 26, 2014	April 27, 2013	April 26, 2014	April 27, 2013
AT&T Inc. ("AT&T")	20.8%	17.4%	18.9%	15.0%
CenturyLink, Inc. ("CenturyLink")	12.8%	14.3%	14.3%	14.3%
Comcast Corporation ("Comcast")	12.1%	10.1%	11.5%	11.2%

The Company believes that none of its significant customers was experiencing financial difficulties that would materially impact the collectability of the Company’s trade accounts receivable and costs in excess of billings as of April 26, 2014 and July 27, 2013. Customers representing 10% or more of combined amounts of trade accounts receivable and costs and estimated earnings in excess of billings as of April 26, 2014 or July 27, 2013 had the following outstanding balances and the related percentage of the Company’s total outstanding balances:



	April 26, 2014				July 27, 2013
	Amount		% of Total		Amount		% of Total
			(Dollars in millions)
AT&T	$	73.8	17.1	%	$	57.4	12.6	%
CenturyLink	$	46.4	10.7	%	$	62.6	13.7	%
Windstream Corporation	$	34.5	8.0	%	$	59.4	13.0	%

- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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