Goodwill and Intangible Assets (Tables)

9 Months Ended

Apr. 29, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill for fiscal 2017 were as follows (dollars in thousands):

	Goodwill		Accumulated Impairment Losses			Total
Balance as of July 30, 2016	$	505,924	$	(195,767	)	$	310,157
Goodwill from fiscal 2017 acquisition	10,309		—			10,309
Purchase price allocation adjustments from fiscal 2016 acquisitions	2,769		—			2,769
Balance as of April 29, 2017	$	519,002	$	(195,767	)	$	323,235

Impairment Calculation Rates

The table below outlines certain assumptions in each of the Company’s fiscal 2016, 2015, and 2014 annual quantitative impairment analyses:

	2016	2015	2014
Terminal Growth Rate	2.0% - 3.0%	1.5% - 2.5%	1.5% - 3.0%
Discount Rate	11.5%	11.5%	11.5%

Schedule of Intangible Assets

The Company’s intangible assets consisted of the following (dollars in thousands):

	April 29, 2017							July 30, 2016
	Weighted Average Remaining Useful Lives (Years)	Gross Carrying Amount		Accumulated Amortization		Intangible Assets, Net		Gross Carrying Amount		Accumulated Amortization		Intangible Assets, Net
Customer relationships	12.3	$	299,717	$	118,203	$	181,514	$	289,955	$	101,012	$	188,943
Trade names	7.3	10,350		6,914		3,436		9,800		6,034		3,766
UtiliQuest trade name	—	4,700		—		4,700		4,700		—		4,700
Non-compete agreements	2.5	685		484		201		685		329		356
Contract backlog	—	—		—		—		4,780		4,666		114
		$	315,452	$	125,601	$	189,851	$	309,920	$	112,041	$	197,879