Business Acquisitions (Pro Forma Results of Operations) (Detail) (Vlingo and Transcend [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Vlingo and Transcend [Member]
Business Acquisition [Line Items]
Revenue	$ 472,076	$ 444,322	$ 1,389,889	$ 1,265,340
Net income (loss)	$ (36,678)	$ 16,645	$ (92,999)	$ 13,749
Net income (loss) per share (in dollars per share)	$ (0.12)	$ 0.05	$ (0.30)	$ 0.04

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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