Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 01, 2022	Sep. 25, 2021	Jun. 26, 2021	Mar. 27, 2021	Dec. 26, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Jan. 01, 2022	Dec. 26, 2020	Dec. 28, 2019
Numerator:
Net income as reported	$ 51,944	$ 92,054	$ 82,095	$ 57,713	$ 58,977	$ 55,356	$ (8,991)	$ 24,644	$ 283,806	$ 129,986	$ 139,082
Weighted average shares outstanding
Basic (in shares)									24,603	24,371	24,576
Effect of dilutive securities (in shares)									329	221	242
Diluted (in shares)									24,932	24,592	24,818
Earnings Per Share:
Basic earnings per share (in dollars per share)	$ 2.11	$ 3.74	$ 3.34	$ 2.35	$ 2.41	$ 2.27	$ (0.37)	$ 1.01	$ 11.54	$ 5.33	$ 5.66
Diluted earnings per share (in dollars per share)	$ 2.08	$ 3.69	$ 3.30	$ 2.32	$ 2.39	$ 2.25	$ (0.37)	$ 1.00	$ 11.38	$ 5.29	$ 5.60