Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 5,033	$ 4,250	$ 7,084	$ 7,888
Income tax benefit	1,218	1,066	1,714	1,964
Total stock-based compensation expense, net of tax	3,815	3,184	5,370	5,924
Stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	4,440	3,696	5,846	6,729
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 593	$ 554	$ 1,238	$ 1,159

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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