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Inventories (Details) - USD ($) $ in Thousands | Jan. 23, 2016 | Apr. 25, 2015
--- | --- | ---
Inventories |  |
Raw materials | $ 97,280 | $ 75,024
Work in process | 12,158 | 14,310
Finished goods | 98,765 | 92,295
FIFO inventories | 208,203 | 181,629
Excess of FIFO over LIFO | (24,958) | (24,840)
Inventories, net | $ 183,245 | $ 156,789

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