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Stockholders’ Equity and Stock-Based Compensation - ESPP Activity (Details) - Employee stock purchase plan	6 Months Ended
	Jun. 27, 2020 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under ESPP (In shares) | shares	311,591
Weighted average per share purchase price (in dollars per share)	$ 13.05
Weighted average per share discount from the fair value of our common stock on the date of issuance (in dollars per share)	$ 12.26

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Weighted Average Per Share Discount From Fair Value From Date Of Issuance, Common Stock

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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