Income Taxes - Provision (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 25, 2020	Jan. 26, 2019	Jan. 27, 2018
Current income tax expense
Federal	$ 16,867	$ 16,620	$ 23,786
State	3,058	2,607	2,885
Deferred income tax expense (benefit)
Federal	4,156	(16,343)	9,208
State	(909)	(2,901)	(2,034)
Income tax provision (benefit)	$ 23,172	$ (17)	$ 33,845

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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