Goodwill and Intangible Assets (Tables)

6 Months Ended

Jan. 24, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for fiscal 2015 are as follows:



	Goodwill		Accumulated Impairment Losses			Total
	(Dollars in thousands)
Balance as of July 26, 2014	$	464,855	$	(195,767	)	$	269,088
Purchase price allocation adjustments	377		—			377
Balance as of January 24, 2015	$	465,232	$	(195,767	)	$	269,465

Schedule of Intangible Assets

The Company's intangible assets consist of the following:



	January 24, 2015		July 26, 2014
	(Dollars in thousands)
Carrying amount:
Customer relationships	$	179,859	$	173,594
Contract backlog	8,076		15,285
Trade names	8,200		8,200
UtiliQuest trade name	4,700		4,700
Non-compete agreements	400		400
	201,235		202,179
Accumulated amortization:
Customer relationships	75,979		69,048
Contract backlog	6,874		13,490
Trade names	4,005		3,361
Non-compete agreements	204		164
	87,062		86,063
Net Intangible Assets	$	114,173	$	116,116

Future Amortization Expense

Estimated total amortization expense for the remainder of fiscal 2015 and each of the five succeeding fiscal years and thereafter is as follows (dollars in thousands):



Period	Amount
Six months ending July 25, 2015	$	8,289
2016	15,918
2017	14,403
2018	12,212
2019	9,792
2020	8,855
Thereafter	40,004
Total	$	109,473