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Income Taxes - Narratives (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 31, 2021	Jul. 25, 2020	Apr. 25, 2020	Jul. 31, 2021	Jul. 25, 2020
Income Tax Disclosure [Abstract]
Effective tax rate	26.30%	24.90%		16.50%	76.40%
Goodwill impairment charge			$ 53,300	$ 0	$ 53,264
Tax loss carryback technical correction		$ 2,600			$ 2,600

X

- Definition

Tax Loss Carryback Benefit, Technical Correction

+ References

No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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