Operating Segments (Tables)

3 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following tables present summarized financial information for the Company's operating segments (for the periods noted below): 

	Power		Environmental		Infrastructure		Oil & Gas		Total
Three months ended Sept. 30, 2016:
Gross revenue	$	56,995	$	73,936	$	22,913	$	26,638	$	180,482
Net service revenue	37,100		48,894		16,630		21,338		123,962
Segment profit	7,967		9,052		4,309		1,371		22,699
Depreciation	444		645		138		352		1,579
Amortization	248		274		—		2,067		2,589
Three months ended Sept. 25, 2015:
Gross revenue	$	39,237	$	75,843	$	19,970	$	—	$	135,050
Net service revenue	34,338		51,564		13,562		—		99,464
Segment profit	7,312		9,982		2,893		—		20,187
Depreciation	465		624		97		—		1,186
Amortization	300		365		—		—		665

	Three Months Ended
Gross revenue	September 30, 2016			September 25, 2015
Gross revenue from reportable operating segments	$	180,482		$	135,050
Reconciling items (1)	369			409
Total consolidated gross revenue	$	180,851		$	135,459
Net service revenue
Net service revenue from reportable operating segments	$	123,962		$	99,464
Reconciling items (1)	343			699
Total consolidated net service revenue	$	124,305		$	100,163
Income from operations before taxes
Segment profit from reportable operating segments	$	22,699		$	20,187
Corporate shared services (2)	(14,949		)	(9,954		)
Stock-based compensation expense	(1,457		)	(1,269		)
Unallocated acquisition and integration expenses	—			(878		)
Unallocated depreciation and amortization	(336		)	(413		)
Interest income	278			—
Interest expense	(845		)	(28		)
Total consolidated (loss) income from operations before taxes	$	5,390		$	7,645
Acquisition and integration expenses
Acquisition and integration expenses from reportable operating segments	$	—		$	—
Unallocated acquisition and integration expenses	—			878
Total consolidated acquisition and integration expenses	$	—		$	878
Depreciation and amortization
Depreciation and amortization from reportable operating segments	$	4,168		$	1,851
Unallocated depreciation and amortization	336			413
Total consolidated depreciation and amortization	$	4,504		$	2,264

(1) Amounts represent certain unallocated corporate amounts not considered in the CODM's evaluation of operating segment performance.

(2) Corporate shared services consist of centrally managed functions in the following areas: accounting, treasury, information technology, legal, human resources, marketing, internal audit and executive management such as the CEO and various executives. These costs and other items of a general corporate nature are not allocated to the Company’s four operating segments.