Inventories (Policies)	3 Months Ended
	Sep. 01, 2018
Inventories [Abstract]
Inventory, Policy	Inventories are valued at the lower of cost or market and include material, labor, and overhead. The inventories at our West Michigan manufacturing operations are valued using the last-in, first-out (LIFO) method, whereas inventories of certain other operations are valued using the first-in, first-out (FIFO) method