Other Operating Gains, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Apr. 30, 2015		Apr. 30, 2014		Apr. 30, 2015		Apr. 30, 2014
Other Operating Gains, Net [Abstract]
Telecom Platform Services-gain related to legal matters							$ 650
All Other-gain on insurance claim (a)		[1]		[1]		[1]	571	[1]
All Other-other							67
Corporate-losses related to legal matters	(1,552)				(1,552)		(79)
Total	$ (1,552)				$ (1,552)		$ 1,209

[1] In the nine months ended April 30, 2014, the Company received proceeds from insurance of $0.6 million related to water damage to portions of the Company's building and improvements at 520 Broad Street, Newark, New Jersey. The damage occurred in a prior period. The Company recorded a gain of $0.6 million from this insurance claim.