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

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
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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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- 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
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-Section S99
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- Definition

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next 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, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Restructuring Charges (Credits) - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) position	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)	$ 59	$ (154)	$ 959	$ (198)	$ (423)
Restructuring reserve	350		350		306	$ 2,518
Restructuring reserve, current	200		200
Restructuring reserve, noncurrent	200		$ 200
2017 Restructuring Plan \| Workforce Reduction Costs
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated \| position			50
Restructuring charges (credits)			$ 883		0
Restructuring reserve	80		80		0	0
2017 Restructuring Plan \| Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)			118		0
Restructuring reserve	0		0		0	0
2015 Restructuring Plan \| Workforce Reduction Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)			0		0
Restructuring reserve	0		0		0	55
2015 Restructuring Plan \| Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)			(42)		(423)
Restructuring reserve	$ 270		$ 270		$ 306	$ 2,463