Note 12 - Inventories (Tables)

12 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	2019		2018
	(In thousands)
Finished products	$	454,920	$	499,984
In process		42,045		47,970
Raw materials and supplies		166,060		144,009
		663,025		691,963
Less excess of FIFO cost over LIFO cost		161,341		145,004
Total inventories	$	501,684	$	546,959