Business Segment Information (Tables)

9 Months Ended

Apr. 30, 2016

Business Segment Information [Abstract]

Summary of operating results of business segments

(in thousands)	Telecom Platform Services		Consumer Phone Services		All Other		Corporate			Total
Three Months Ended April 30, 2016
Revenues	$	350,399	$	1,682	$	3,073	$	—		$	355,154
Income (loss) from operations		6,319		351		1,804		(2,798	)		5,676
Gain on sale of interest in Fabrix Systems Ltd.		—		—		1,086		—			1,086
Three Months Ended April 30, 2015
Revenues	$	379,139	$	2,098	$	2,693	$	—		$	383,930
Income (loss) from operations		5,602		324		1,584		(5,040	)		2,470
Gain on sale of interest in Fabrix Systems Ltd.		—		—		1,235		—			1,235
Nine Months Ended April 30, 2016
Revenues	$	1,112,779	$	5,277	$	10,130	$	—		$	1,128,186
Income (loss) from operations		22,346		980		4,079		(7,427	)		19,978
Gain on sale of interest in Fabrix Systems Ltd.		—		—		1,086		—			1,086
Nine Months Ended April 30, 2015
Revenues	$	1,171,897	$	6,652	$	12,432	$	—		$	1,190,981
Income (loss) from operations		18,142		985		77,520		(10,834	)		85,813
Gain on sale of interest in Fabrix Systems Ltd.		—		—		76,864		—			76,864