Quarterly report pursuant to Section 13 or 15(d)

Long-Term Indebtedness (Parenthetical) (Detail)

v2.4.0.6
Long-Term Indebtedness (Parenthetical) (Detail)
Nov. 30, 2012
Nov. 30, 2011
Nov. 30, 2012
5.625% Senior Notes
Aug. 31, 2012
5.625% Senior Notes
Apr. 16, 2012
5.625% Senior Notes
Debt Instrument [Line Items]          
Debt instrument, interest rate 2.00% 2.00% 5.625% 5.625% 5.625%