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Income Taxes
3 Months Ended
Dec. 31, 2011
Income Taxes [Abstract]  
Income Taxes

9. Income Taxes

The United States statutory tax rate for the three months ended December 31, 2011 and 2010 was 35%. The Company's effective tax rates for the three months ended December 31, 2011 and 2010 were 32.8% and 31.2%, respectively. The Company's lower effective tax rate for the three months ended December 31, 2011 and 2010 primarily resulted from a manufacturers'/producers' deduction available to U.S. manufacturers.

From time to time the Company is the subject of audits by various tax authorities that can result in claims and assessments and additional tax payments, penalties and interest. The United States Internal Revenue Service ("IRS") is in the process of conducting an audit of the Company's United States Federal income tax returns for fiscal years 2009, 2008 and 2007. Management believes that the outcome of such audit will not have a material effect on the Company's financial position, results of operations or cash flows.