v3.8.0.1

Stock-based Compensation - Shares Reserved for Issuance (Details) - shares shares in Thousands	Dec. 30, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Common stock available for stock-based award grants under incentive award plans	13,277
Employee Stock Option
Class of Stock [Line Items]
Options issued and outstanding	4,486	4,312
Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Restricted stock units issued and outstanding	1,850	1,780
Common Stock
Class of Stock [Line Items]
Common stock available for conversion of Series A Redeemable Convertible Preferred Stock	4,787
2014 Plan
Class of Stock [Line Items]
Common stock available for stock-based award grants under incentive award plans	2,154

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Aggregate number of common shares reserved for future issuance.

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Number of shares issued for each share of convertible preferred stock that is converted.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Number of options outstanding, including both vested and non-vested options.

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