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Commitments and Contingencies - Narrative (Details)	3 Months Ended	12 Months Ended
	Jun. 30, 2017 USD ($)	Mar. 31, 2014	Dec. 28, 2015 firm
Other Commitments [Line Items]
Warranty period		5 years
Number of venture firms invested in Lifesize | firm			3
Parent guarantee for purchase obligation of third party contract manufacturer
Other Commitments [Line Items]
Maximum amount of the guarantees	$ 3,800,000
Guarantees outstanding	900,000
Indemnification agreement
Other Commitments [Line Items]
Amount accrued for indemnification provisions	$ 0
European Countries
Other Commitments [Line Items]
Warranty period	2 years
All Other Countries
Other Commitments [Line Items]
Warranty period	1 year

X

- Definition

Number of Venture Firms that invested in the Company's discontinued operations

+ References

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X

- Definition

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+ References

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+ Details

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X

- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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- Definition

Amount of loss contingency liability.

+ References

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=82911808&loc=d3e14326-108349

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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