Inventory (table)

12 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

		2015		2014		2013
		(In thousands)
Finished products	$	414,154	$	418,368	$	445,278
In process		22,651		16,056		18,107
Raw materials and supplies		199,674		170,210		149,359
		636,479		604,634		612,744
Less excess of FIFO cost over LIFO cost		164,067		153,384		133,014
Total inventories	$	472,412	$	451,250	$	479,730