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Business Acquisitions and Divestiture - Contract Manufacturing, Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Apr. 01, 2017 | Sep. 30, 2017 | Sep. 24, 2016 | Feb. 10, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Gain on divestiture |  | $ 10,577 | $ 0 |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | CDMO Business |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Cash received from divestiture |  |  |  | $ 75,000
Cash and cash equivalents transferred |  |  |  | 600
Working capital adjustments |  |  |  | $ 300
Gain on divestiture | $ 10,600 |  |  |

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