Deconsolidation of Specialty Products Holding Corp. ("SPHC") - Additional Information (Detail) (USD $)	3 Months Ended
May 31, 2010	Feb. 29, 2012
Reorganization [Line Items]
Number of appeal bonds satisfied		1
Carrying value of retained interest in SPHC	$ 0
Net loss from deconsolidation of business	$ (7,900,000)

- Definition

The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities.

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