Stockholders' Equity and Stock-Based Compensation - Summary of Activity of Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 28, 2019	Dec. 29, 2018
Activity of stock option plans [Roll Forward]
Number of Shares Outstanding (Options), Beginning Balance (in shares)	83,394
Number of Shares Outstanding (Options), Exercised (in shares)	(71,365)
Number of Shares Outstanding (Options), Cancelled (in shares)	(25)
Number of Shares Outstanding (Options), Ending Balance (in shares)	12,004	83,394
Number of Shares Outstanding (Options), Exercisable (in shares)	12,004
Weighted average exercise price for stock option plans [Roll Forward]
Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 15.80
Weighted Average Exercise Price, Exercised (in dollars per share)	15.72
Weighted Average Exercise Price, Cancelled (in dollars per share)	14.95
Weighted Average Exercise Price, Ending Balance (in dollars per share)	16.27	$ 15.80
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 16.27
Weighted Average Remaining Contractual Term, Outstanding	9 months 18 days	1 year 2 months 8 days
Weighted Average Remaining Contractual Term, Exercisable	9 months 18 days
Aggregate Intrinsic Value, Outstanding	$ 198	$ 988
Aggregate Intrinsic Value, Exercisable	$ 198