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Stockholders’ Equity - Narrative - Employee Stock Purchase Plan (Details) - ESPP - Employee Stock
shares in Millions
9 Months Ended
Sep. 27, 2020
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Specified percentage of the fair market value of the common stock on the first or last day of the offering period whichever is lower at which stock is purchased 85.00%
Total shares issued under the ESPP (in shares) 0.2
Shares available for issuance (in shares) 13.3