The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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The amount of fixed manufacturing costs required to be paid during the fiscal year.

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The percentage of fixed costs as defined in the agreement and determined at the beginning of each calendar year that the entity is required to pay.

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The percentage of manufacturing capacity that the entity has the guaranteed right to purchase up to.

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- Definition

The percentage of dpiX Holding LLC's ownership interest in dpiX LLC.

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2013	Jul. 03, 2015	Jun. 27, 2014	Jul. 03, 2015	Jun. 27, 2014	Sep. 26, 2014
dpiX Holding LLC \| dpiX Holding LLC
Related Party Transaction [Line Items]
Ownership interest in dpiX Holding LLC		40.00%		40.00%
Income (loss) on equity investment in affiliate			$ 0.7	$ 0.5	$ 0.1
Carrying value of the equity investment in dpiX Holding		$ 48.0		48.0		$ 49.7
dpiX LLC
Related Party Transaction [Line Items]
Purchases of glass transistor arrays from dpiX		5.6	$ 5.7	$ 15.5	$ 14.9
Percentage of manufacturing capacity	50.00%
Percentage of fixed costs				50.00%
Fixed cost commitments		$ 4.4		$ 4.4
dpiX Holding LLC \| dpiX LLC
Related Party Transaction [Line Items]
dpiX Holding LLC's ownership interest in dpiX LLC		100.00%		100.00%