Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Restructuring and Related Activities [Abstract]
Restructuring, expected cost	$ 11,300
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	2,754
Restructuring costs	166	$ 7,323
Utilization	(1,453)
Accrual, ending balance	$ 1,467

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- Definition

Amount expected to be recognized in earnings for the specified restructuring cost.

+ References

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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

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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