Operating Segments (Tables)

12 Months Ended

Jun. 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 (as of and for the periods noted below).

	Energy		Environmental		Infrastructure		Pipeline Services			Total
Year ended June 30, 2016:
Gross revenue	$	182,586	$	289,564	$	83,430	$	60,712		$	616,292
Net service revenue	150,636		206,126		57,218		48,379			462,359
Segment profit (loss)	33,666		41,669		12,048		(7,476		)	79,907
Acquisition and integration expenses	—		—		—		3,444			3,444
Depreciation	1,916		2,463		470		1,229			6,078
Amortization	1,116		1,224		—		4,823			7,163
Year ended June 30, 2015:
Gross revenue	$	168,564	$	303,126	$	70,242	$	—		$	541,932
Net service revenue	145,690		209,792		49,110		—			404,592
Segment profit (loss)	32,124		44,071		9,193		—			85,388
Acquisition and integration expenses	—		—		—		—			—
Depreciation	1,938		2,296		417		—			4,651
Amortization	1,204		1,401		—		—			2,605
Year ended June 30, 2014:
Gross revenue	$	160,651	$	245,944	$	63,251	$	—		$	469,846
Net service revenue	132,795		170,506		46,975		—			350,276
Segment profit (loss)	26,468		35,324		8,754		—			70,546
Acquisition and integration expenses	—		—		—		—			—
Depreciation	1,844		2,243		426		—			4,513
Amortization	1,409		460		—					1,869

	Years Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Gross revenue
Gross revenue from reportable operating segments	$	616,292		$	541,932		$	469,846
Reconciling items(1)	4,572			4,185			5,831
Total consolidated gross revenue	$	620,864		$	546,117		$	475,677
Net service revenue
Net service revenue from reportable operating segments	$	462,359		$	404,592		$	350,276
Reconciling items(1)	2,770			3,426			4,680
Total consolidated net service revenue	$	465,129		$	408,018		$	354,956
Income from operations before taxes
Segment profit from reportable operating segments	$	79,907		$	85,388		$	70,546
Corporate shared services(2)	(46,431		)	(47,469		)	(42,549		)
Goodwill impairments	(21,981		)	—			—
Stock-based compensation expense	(5,554		)	(5,149		)	(4,658		)
Unallocated acquisition and integration expenses	(3,127		)	—			—
Unallocated depreciation and amortization	(1,484		)	(2,060		)	(2,418		)
Interest income	840			—			—
Interest expense	(2,707		)	(134		)	(169		)
Total consolidated (loss) income from operations before taxes	$	(537	)	$	30,576		$	20,752
Acquisition and integration expenses
Acquisition and integration expenses from reportable operating segments	$	3,444		$	—		$	—
Unallocated acquisition and integration expenses	3,127			—			—
Total consolidated acquisition and integration expenses	$	6,571		$	—		$	—
Depreciation and amortization
Depreciation and amortization from reportable operating segments	$	13,241		$	7,256		$	6,382
Unallocated depreciation and amortization	1,484			2,060			2,418
Total consolidated depreciation and amortization	$	14,725		$	9,316		$	8,800

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

(2) Corporate shared services consists 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.