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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 24, 2021
Apr. 25, 2020
Apr. 27, 2019
Income Tax Disclosure [Abstract]      
Foreign earnings reinvested $ 45,800    
Potential deferred tax attributable to earnings 1,400    
Deferred tax attributable to foreign earnings reinvested 752 $ 1,316  
Future taxable income 31,600    
Decrease in valuation allowance for deferred tax assets 1,358    
Remaining valuation allowance 3,495 2,137  
Gross unrecognized tax benefit 1,100    
Accrued interest and penalties 400 300  
Recognition of unrecognized tax benefit that would decrease the effective tax rate 900    
Cash paid for taxes (net of refunds received) $ 40,500 $ 24,700 $ 23,800