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Acquisitions and Divestitures - Narrative - Divestiture (Details) - USD ($) $ in Thousands				3 Months Ended	6 Months Ended	9 Months Ended
	Sep. 29, 2016	Sep. 21, 2016	Apr. 11, 2016	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds		$ 50,000				$ 11,300	$ 0
Gain					$ 6,900	4,500
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Initial purchase price	$ 11,700		$ 11,000
Proceeds	11,300		9,000
Liabilities settled	400
Receivables	$ 2,100
Decrease to prior period gain				$ (2,400)
Fair value of obligations to be fulfilled by the Company				$ 1,500		$ 1,500
Certain Transition Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receivables			$ 1,000
Payout period			2 years
Satisfaction Of Certain Conditions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receivables			$ 1,000
Purchase Of Module Product Inventory
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receivables			3,800
Purchase Of Module Product Inventory - Certain Transition Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receivables			$ 1,000
Payout period			2 years

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