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Restructuring - Reconciliation of Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017
Restructuring Reserve [Roll Forward]
Beginning balance	$ 1,194	$ 622	$ 0
Additions	68	1,044	674
Accretion of lease obligations	8	16
Adjustment of lease obligations	(276)
Write-offs	0	(86)
Payments	(430)	(402)	(52)
Ending balance	564	1,194	622
Severance and Related Benefits
Restructuring Reserve [Roll Forward]
Beginning balance	427	613	0
Additions	0	127	643
Accretion of lease obligations	0	0
Adjustment of lease obligations	0
Write-offs	0	0
Payments	(253)	(313)	(30)
Ending balance	174	427	613
Facilities
Restructuring Reserve [Roll Forward]
Beginning balance	767	0	0
Additions	0	811	19
Accretion of lease obligations	8	16
Adjustment of lease obligations	(276)
Write-offs	0	9
Payments	(109)	(69)	(19)
Ending balance	390	767	0
Other
Restructuring Reserve [Roll Forward]
Beginning balance	0	9	0
Additions	68	106	12
Accretion of lease obligations	0	0
Adjustment of lease obligations	0
Write-offs	0	(95)
Payments	(68)	(20)	(3)
Ending balance	$ 0	$ 0	$ 9

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- Definition

Restructuring Reserve, Accretion

+ References

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Restructuring Reserve, Write-offs

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with 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 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Publisher FASB
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-Section 45
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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

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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

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-Topic 420
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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

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