The number of positions eliminated during the period as a result of restructuring activities.

No definition available.

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- Definition

The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s).

+ References

No definition available.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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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

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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- Definition

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b)(2))
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Restructuring Charges - Additional information (Detail) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($) Employee	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Employee	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 2,891		$ 2,022
Remaining accrual balance	$ 3,149	$ 3,185	3,028	$ 3,149	$ 3,185	$ 3,149	$ 3,028
Twenty Sixteen Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Percentage of workforce reduction					18.00%
Number of employees eliminated \| Employee					155
Restructuring charges					$ 1,475
Restructuring liability		1,500			1,500
Remaining accrual balance		1,475			1,475
Twenty Sixteen Restructuring Plan \| Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges		400			400
Twenty Sixteen Restructuring Plan \| Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges		700			700
Twenty Sixteen Restructuring Plan \| Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges		400			400
Twenty Fifteen Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Percentage of workforce reduction	26.00%
Number of employees eliminated \| Employee	198
Restructuring charges	$ 3,200		2,891		547		6,000
Restructuring liability	3,200			3,200		3,200
Remaining accrual balance	$ 3,149	$ 1,710	3,028	3,149	$ 1,710	3,149	$ 3,028
Twenty Fifteen Restructuring Plan \| Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges			700	2,000		2,000
Twenty Fifteen Restructuring Plan \| Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 2,100	$ 1,200		$ 1,200