Reorganization Under Chapter 11 of the Bankruptcy Code and Fresh-Start Accounting (Details) (USD $) In Thousands, unless otherwise specified	May 31, 2010
Represents the adjustment of assets and liabilities to fair value
Defined benefit plans adjustment	$ (30,680)
Inventory adjustment (c)	8,136
Property, plant and equipment adjustment (d)	40,665
Investments in non-consolidated affiliates adjustment (e)	9,021
Noncontrolling interest adjustments (e)	(2,182)
Elimination of Predecessors accumulated other comprehensive loss and other adjustments	(78,678)
Pretax income on fresh-start accounting adjustments	139,931
Tax related to fresh-start accounting adjustments (f)	(24,580)
Net gain on fresh-start accounting adjustments	115,351
Successor [Member]
Represents the adjustment of assets and liabilities to fair value
Goodwill	136,666
Successor's intangible asset adjustment	155,005
Predecessor [Member]
Represents the adjustment of assets and liabilities to fair value
Goodwill	(87,728)
Successor's intangible asset adjustment	(10,294)
Inventory adjustment (c)	$ 8,136