Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Apr. 25, 2020	Apr. 27, 2019
Numerator:
Net (loss) income	$ (358,942)	$ 13,883
Denominator:
Weighted average common shares outstanding-basic	64,130,000	63,672,824
Effect of dilutive securities:
Stock options and restricted stock units		2,143,009
Weighted average common shares outstanding-diluted	64,130,000	65,815,833
Net (loss) income per common share:
Basic	$ (5.60)	$ 0.22
Diluted	$ (5.60)	$ 0.21

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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