Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	May 31, 2012	May 31, 2011	May 31, 2010
Net sales	$ 647,003	$ 621,813	$ 621,064
Cost of products sold	601,256	596,510	562,066
GROSS PROFIT	45,747	25,303	58,998
Selling, general and administrative	73,057	76,420	79,415
Restructuring charges	3,216
Interest	34,835	47,583	52,240
Loss on debt retirements		29,619
Other income	(73,833)	(21,512)	(10,666)
TOTAL EXPENSES	37,275	132,110	120,989
INCOME (LOSS) BEFORE INCOME TAXES	8,472	(106,807)	(61,991)
Income taxes (benefit)	996	(41,894)	(23,138)
NET INCOME (LOSS)	$ 7,476	$ (64,913)	$ (38,853)
Net income (loss) per share
Basic	$ 0.27	$ (2.33)	$ (1.40)
Diluted	$ 0.27	$ (2.33)	$ (1.40)
Average shares outstanding
Basic	27,914	27,825	27,744
Diluted	28,016	27,825	27,744