Net Income (Loss) Per Share Net Income (Loss) Per Share (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 25, 2020	May 19, 2019	Aug. 02, 2018
Equity, Class of Treasury Stock [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited And Expirations In Period	49,010
2018 Stock Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 20.0
2019 Stock Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount		$ 30.0