Loss Contingency, Number of Additional Defendants

No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

No definition available.

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- Definition

Number of another entity's patents that the entity has allegedly infringed.

+ References

No definition available.

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- Definition

Number of another entity's patents that the entity was found not to have infringed.

+ References

No definition available.

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- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(19))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(17))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(25))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Commitments and Contingencies - Narrative (Details) $ in Millions					1 Months Ended		3 Months Ended
	Mar. 05, 2018 patent	Jan. 19, 2018 USD ($)	Jul. 10, 2017 patent	Jun. 09, 2017 lawsuit	May 31, 2016 investor	Feb. 16, 2016 lawsuit	Mar. 31, 2018 USD ($)	Apr. 01, 2017 USD ($)	May 03, 2018 USD ($)	Aug. 23, 2017 defendant
Loss Contingencies [Line Items]
Rent expense							$ 9.6	$ 9.2
Loss contingency, individual investors named as lead plaintiffs \| investor					5
Settlement amount award to other party		$ 33.3
Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, number of lawsuits filed \| lawsuit				2
PurePulse Class Action Lawsuit [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, number of lawsuits filed \| lawsuit						2
Immersion [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Patents Found Not Infringed, Number \| patent	2
Patents allegedly infringed, number \| patent			3
Loss Contingency, Number of Additional Defendants \| defendant										2
Purchase Commitment [Member]
Loss Contingencies [Line Items]
Remaining minimum amount committed							234.0
Subsequent Event [Member] \| Purchase Commitment [Member]
Loss Contingencies [Line Items]
Remaining minimum amount committed									$ 419.0
Accrued liabilities [Member] \| Purchase Commitment [Member]
Loss Contingencies [Line Items]
Remaining minimum amount committed							$ 21.4