Note 11 - Inventories (Tables)

12 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	2018		2017
			(Restated)
	(In thousands)
Finished products	$	636,195	$	576,459
In process		47,972		35,982
Raw materials and supplies		155,468		160,333
		839,635		772,774
Less excess of FIFO cost over LIFO cost		158,807		143,839
Total inventories	$	680,828	$	628,935