Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Discontinued Operations (Details) - High-Speed Converter Business - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Apr. 27, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on divestiture	$ 1.3
Discontinued Operations, Held-for-sale or Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of remaining HSC business to eSilicon		$ 1.5	$ 1.5
Cash proceeds from sale (including amounts held in escrow)		1.5
Gain on divestiture		1.4
Carrying value of asset sold		$ 0.1