Other Operating Gains (Losses), Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Other operating gains (losses), net by business segment
Telecom Platform Services-gains (losses) related to legal matters, net (see Note 9)	$ 9,601	$ (6,468)	$ 9,251	$ (6,698)
Telecom Platform Services-gain on settlement of claims (a)				1,750
Telecom Platform Services-loss on settlement of litigation (b)				(11,022)
All Other-gain on settlement of claim			150
All Other-gain on sale of rights in wireless spectrum licenses (c)		5,330		5,330
Corporate-other				100
Total	$ 9,601	$ (1,138)	$ 9,401	$ (10,540)

The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration