XML 31 R17.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Income Taxes
9 Months Ended
Jul. 31, 2011
Income Taxes [Abstract]  
INCOME TAXES
NOTE 12 — INCOME TAXES
The effective tax rate was 25.4% and 18.2% for the three months ended July 31, 2011 and 2010, respectively, and 24.3% and 18.9% for the nine months ended July 31, 2011 and 2010 respectively. The change in the effective tax rate is primarily attributable to the recognition of a valuation allowance on deferred tax assets in 2011, the incremental benefit from an alternative fuel tax credit in 2010, and other discrete tax items recognized in these periods.
The Company has estimated the reasonably possible expected net change in unrecognized tax benefits through July 31, 2011 based on expected settlements or payments of uncertain tax positions, and lapses of the applicable statutes of limitations of unrecognized tax benefits under ASC 740, “Income Taxes.”