Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 25, 2021	Jun. 26, 2021	Mar. 27, 2021	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Sep. 25, 2021	Sep. 26, 2020
Numerator:
Net income as reported	$ 92,054	$ 82,095	$ 57,713	$ 55,356	$ (8,991)	$ 24,644	$ 231,862	$ 71,009
Weighted average shares outstanding
Basic (in shares)	24,622			24,357			24,582	24,354
Effect of dilutive securities (in shares)	304			216			322	181
Diluted (in shares)	24,926			24,573			24,904	24,535
Earnings Per Share:
Basic earnings per share (in dollars per share)	$ 3.74			$ 2.27			$ 9.43	$ 2.92
Diluted earnings per share (in dollars per share)	$ 3.69			$ 2.25			$ 9.31	$ 2.89