Stockholders' Equity and Stock-Based Compensation - Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of shares of common stock repurchased	896,187	1,065,848
Weighted average price per share	$ 25.65	$ 25.33
Total cost of repurchase	$ 22,987	$ 26,999
Amount available for repurchase at end of period		$ 23,001

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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