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Leases - Lease Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 24, 2021
Apr. 25, 2020
Apr. 27, 2019
Leases [Abstract]      
Operating lease cost $ 79,072 $ 76,223  
Financing lease cost 53 166  
Short-term lease cost 545 248  
Variable lease cost (245) (40)  
Less: Sublease income (1,546) (2,504)  
Total lease cost $ 77,879 $ 74,093  
Rent expense     $ 77,200