Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Apr. 24, 2021	Apr. 25, 2020
Assets:
Cash equivalents	$ 1,698	$ 3,391
Cash equivalents	183,999	117,327
DPP receivable - customer financing	227,967	228,019
Derivative instruments	2,120	204
Total assets	415,784	348,941
Liabilities:
Derivative instruments	11,571	19,849
Level 1
Assets:
Cash equivalents	1,698	3,391
Cash equivalents	0	0
DPP receivable - customer financing	0	0
Derivative instruments	0	0
Total assets	1,698	3,391
Liabilities:
Derivative instruments	0	0
Level 2
Assets:
Cash equivalents	0	0
Cash equivalents	0	0
DPP receivable - customer financing	0	0
Derivative instruments	2,120	204
Total assets	2,120	204
Liabilities:
Derivative instruments	11,571	19,849
Level 3
Assets:
Cash equivalents	0	0
Cash equivalents	183,999	117,327
DPP receivable - customer financing	227,967	228,019
Derivative instruments	0	0
Total assets	411,966	345,346
Liabilities:
Derivative instruments	$ 0	$ 0