Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Feb. 28, 2014		Feb. 28, 2013		Feb. 28, 2014		Feb. 28, 2013
NET SALES	$ 207,828		$ 141,359		$ 649,802		$ 483,575
Cost of products sold	195,835		129,035		592,986		444,297
GROSS PROFIT	11,993		12,324		56,816		39,278
Selling, general and administrative	18,264		17,056		56,471		51,679
Merger Charges	2,863		0		2,863		0
Interest expense	17,409		7,227		52,203		22,462
Other income, net	(1,696)		(2,091)		(12,959)		(6,614)
LOSS BEFORE INCOME TAXES FROM CONTINUING OPERATIONS	(24,847)		(9,868)		(41,762)		(28,249)
Income taxes (benefit)	(3,078)		(1,355)		(2,783)		(2,151)
NET LOSS FROM CONTINUING OPERATIONS	(21,769)		(8,513)		(38,979)		(26,098)
NET INCOME FROM DISCONTINUED OPERATIONS	0		2,699		0		6,504
NET LOSS	$ (21,769)		$ (5,814)		$ (38,979)		$ (19,594)
NET LOSS PER SHARE FROM CONTINUING OPERATIONS:
Basic (in USD per share)	$ (0.76)		$ (0.30)		$ (1.36)		$ (0.93)
Diluted (in USD per share)	$ (0.76)		$ (0.30)		$ (1.36)		$ (0.93)
NET INCOME PER SHARE FROM DISCONTINUED OPERATIONS:
Basic (in USD per share)	$ 0.00		$ 0.09		$ 0.00		$ 0.23
Diluted (in USD per share)	$ 0.00		$ 0.09		$ 0.00		$ 0.23
NET LOSS PER SHARE:
Basic (in USD per share)	$ (0.76)		$ (0.21)		$ (1.36)		$ (0.70)
Diluted (in USD per share)	$ (0.76)		$ (0.21)		$ (1.36)		$ (0.70)
AVERAGE SHARES OUTSTANDING
Basic (in shares)	28,696		28,190		28,629		28,073
Diluted (in shares)	28,696	[1]	28,190	[1]	28,629	[1]	28,073	[1]

[1] Shares excluded due to antidilutive effect of stock options, restricted shares and awards