Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Dec. 26, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill for the six months ended December 26, 2014 by operating segment are as follows:

	Gross									Gross
	Balance,		Accumulated			Balance,				Balance,		Accumulated			Balance,
	July 1,		Impairment			July 1,		Additions /		December 26,		Impairment			December 26,
Operating Segment	2014		Losses			2014		Adjustments		2014		Losses			2014
Energy	$	27,836	$	(14,506	)	$	13,330	$	—	$	27,836	$	(14,506	)	$	13,330
Environmental	36,214		(17,865		)	18,349		$	4,963	41,177		(17,865		)	23,312
Infrastructure	7,224		(7,224		)	—		$	—	7,224		(7,224		)	—
	$	71,274	$	(39,595	)	$	31,679	$	4,963	$	76,237	$	(39,595	)	$	36,642

Schedule of Finite and Indefinite-Lived Intangible Assets

Identifiable intangible assets as of December 26, 2014 and June 30, 2014 are included in other assets on the condensed consolidated balance sheets and were comprised of:

	December 26, 2014							June 30, 2014
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
Identifiable intangible assets	Amount		Amortization			Amount		Amount		Amortization			Amount
With determinable lives:
Customer relationships	$	16,213	$	(5,999	)	$	10,214	$	12,125	$	(4,400	)	$	7,725
Contract backlog	135		(101		)	34		110		(83		)	27
	16,348		(6,100		)	10,248		12,235		(4,483		)	7,752
With indefinite lives:
Engineering licenses	426		—			426		426		—			426
	$	16,774	$	(6,100	)	$	10,674	$	12,661	$	(4,483	)	$	8,178

Schedule of Expected Amortization Expense

Estimated amortization expense of intangible assets for the remainder of fiscal year 2015 and succeeding fiscal years is as follows:

Fiscal Year		Amount
2015		$	1,758
2016		2,915
2017		2,335
2018		1,748
2019		948
2020 and Thereafter		544
	Total	$	10,248