Supplementary Balance Sheet Information (Details 6) - Office space in Bedford, Massachusetts - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Land-lord funded leasehold improvements
Landlord improvement allowance included in leasehold improvements and deferred rent liability	$ 6.1
Leasehold improvements deemed to be owned by the landlord		$ 1.5
Leasehold improvements, reclassified as a reduction to deferred rent	$ 1.5
Other non-current assets
Land-lord funded leasehold improvements
Land-lord funded leasehold improvements		$ 1.5

Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement reclassified as a reduction to deferred rent.

No definition available.

+ Details

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

- Definition

Represents a non-cash improvement allowance included in leasehold improvements and deferred rent liability during the period.

+ References

No definition available.

+ Details

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- Definition

Represents leasehold improvements during the period that were deemed to be owned by the landlord.

+ References

No definition available.

+ Details

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- Definition

Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 4

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765

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- References

No definition available.

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