Goodwill and Intangible Assets (Tables)

6 Months Ended

Jan. 26, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Future Amortization Expense

Period	Amount
	(Dollars in thousands)
Six months ending July 27, 2013	$14,220
Fiscal 2014	$18,080
Fiscal 2015	$15,222
Fiscal 2016	$14,373
Fiscal 2017	$13,106
Fiscal 2018	$10,794
Thereafter	$43,811

Schedule of Goodwill

The Company's goodwill balance was $263.0 million and $174.8 million as of January 26, 2013 and July 28, 2012, respectively. Changes in the carrying amount of goodwill for fiscal 2013 are as follows:

				Six Months Ended January 26, 2013
	As of			Impairment				As of
	July 28, 2012			Losses		Acquisitions		January 26, 2013
	(Dollars in thousands)
Goodwill	$	370,616		$	—	$	88,140	$	458,756
Accumulated impairment losses	(195,767		)	—		—		(195,767		)
	$	174,849		$	—	$	88,140	$	262,989

Schedule of Intangible Assets

The Company's intangible assets consist of the following:

	Weighted Average Remaining Useful Lives	January 26, 2013		July 28, 2012
	(Years)	(Dollars in thousands)
Carrying amount:
Customer relationships	12.7	$	160,645	$	89,145
Contract backlog	2.7	14,410		—
Trade names	5.5	8,025		2,860
UtiliQuest trade name	—	4,700		4,700
Non-compete agreements	2.9	150		150
		187,930		96,855
Accumulated amortization:
Customer relationships		50,019		45,852
Contract backlog		2,087		—
Trade names		1,455		1,182
Non-compete agreements		63		48
Net Intangible Assets		$	134,306	$	49,773