DISCONTINUED OPERATIONS (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012	Jul. 31, 2012
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Net sales	$ 5,496	$ 57,934	$ 8,523	$ 112,313
Earnings/(loss) from discontinued operations before income taxes	(5,663)	14,312	394,321	28,083
Provision/(benefit) for income taxes	(2,114)	4,229	147,563	8,197
Earnings/(loss) from discontinued operations, net of income taxes	(3,549)	10,083	246,758	19,886
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Inventory					40,090
Prepaid expenses and other current assets					1,883
Total current assets					41,973
Property, plant and equipment					75,506
Goodwill					18,514
Intangible assets					524
Other non-current assets					0
Total non-current assets					94,544
Total assets					136,517
Total liabilities					$ 2,643