Inventory (table)

12 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

		2013		2012		2011
		(In thousands)
Finished products	$	445,278	$	406,164	$	390,754
In process		18,107		24,451		21,680
Raw materials and supplies		149,359		139,045		132,690
		612,744		569,660		545,124
Less excess of FIFO cost over LIFO cost		133,014		137,227		89,888
Total inventories	$	479,730	$	432,433	$	455,236