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Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 8,470	$ 4,146	$ 15,554	$ 12,034
Income tax benefit	2,081	984	3,795	2,948
Total stock-based compensation expense, net of tax	6,389	3,162	11,759	9,086
Stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	7,930	3,527	13,776	10,256
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 540	$ 619	$ 1,778	$ 1,778

X

- Definition

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

+ References

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-Publisher FASB
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-Topic 718
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