Business combinations (Pro Forma Information) (Details) (Enterasys Networks, Inc., USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Enterasys Networks, Inc.
Business Acquisition [Line Items]
Net revenues	$ 159,944	$ 158,258	$ 321,837	$ 327,599
Net loss	$ (55,090)	$ (15,196)	$ (51,682)	$ (14,833)
Net loss per share - basic and diluted (USD per share)	$ (0.57)	$ (0.16)	$ (0.54)	$ (0.16)

Business Acquisition, Pro Forma Earnings Per Share, Basic and Diluted

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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

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

+ References

+ Details

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