Income Taxes	6 Months Ended
Mar. 31, 2013
Income Taxes	11. Income Taxes The United States statutory tax rate for the three and six months ended March 31, 2013 and 2012 was 35%. The Company’s effective tax rates for the three months ended March 31, 2013 and 2012 were 32.6% and 32.1%, respectively. The Company’s effective tax rates for the six months ended March 31, 2013 and 2012 were 31.5% and 32.4%, respectively. Compared to the United States statutory rate of 35%, the Company’s lower effective tax rates for each of the periods ended March 31, 2013 and 2012 primarily resulted from a manufacturers’/producers’ deduction available to U.S. manufacturers. In December 2011 the United States Congress announced that it extended the research and experimentation tax credit from January 1, 2012 through December 31, 2013. When the research and experimentation tax credit expired on December 31, 2012, the Company did not recognize any associated tax credits for the period January 1, 2012 through September 30, 2012. As a result of that announcement by the United States Congress, during its first quarter ended December 31, 2012, the Company recognized $0.3 million of additional research and experimentation tax credits. Such credits were earned by the Company in its fiscal year ended September 30, 2012.

Income Taxes

6 Months Ended

Mar. 31, 2013

11. Income Taxes

The United States statutory tax rate for the three and six months ended March 31, 2013 and 2012 was 35%. The Company’s effective tax rates for the three months ended March 31, 2013 and 2012 were 32.6% and 32.1%, respectively. The Company’s effective tax rates for the six months ended March 31, 2013 and 2012 were 31.5% and 32.4%, respectively. Compared to the United States statutory rate of 35%, the Company’s lower effective tax rates for each of the periods ended March 31, 2013 and 2012 primarily resulted from a manufacturers’/producers’ deduction available to U.S. manufacturers. In December 2011 the United States Congress announced that it extended the research and experimentation tax credit from January 1, 2012 through December 31, 2013. When the research and experimentation tax credit expired on December 31, 2012, the Company did not recognize any associated tax credits for the period January 1, 2012 through September 30, 2012. As a result of that announcement by the United States Congress, during its first quarter ended December 31, 2012, the Company recognized $0.3 million of additional research and experimentation tax credits. Such credits were earned by the Company in its fiscal year ended September 30, 2012.