Income Taxes	6 Months Ended
Mar. 31, 2013
Income Taxes
Income Taxes	Note 9 — Income Taxes Our effective tax rate for the six months ended March 31, 2013 is lower than the U.S. federal statutory tax rate primarily due to the amount of income earned in foreign tax jurisdictions that is taxed at lower rates than the U.S. federal statutory tax rate and reinstatement of the U.S. federal research and development tax credit included in the American Taxpayer Relief Act of 2012, which was signed into law on January 2, 2013. Our effective tax rate for the six months ended March 31, 2013 was 24% as compared to 29% for the year ended September 30, 2012. The effective tax rate for the six months ended March 31, 2013 benefitted from the retroactive extension of the federal research and development tax credit. The amount of unrecognized tax benefits was $8.9 million as of March 31, 2013 and $8.3 million as of September 30, 2012, exclusive of interest and penalties. At March 31, 2013, the amount of unrecognized tax benefits from permanent tax adjustments that, if recognized, would favorably impact the effective rate was $6.8 million. During the next 12 months, it is reasonably possible that resolution of reviews by taxing authorities, both domestic and international, could be reached with respect to approximately $4.8 million of the unrecognized tax benefits depending on the timing of examinations and expiration of statute of limitations, either because our tax positions are sustained or because we agree to their disallowance and pay the related income tax. We are subject to ongoing audits from various taxing authorities in the jurisdictions in which we do business. As of March 31, 2013, the tax years open under the statute of limitations in significant jurisdictions include 2007-2011 in the U.K., 2007-2011 in New Zealand and 2008-2011 in the U.S. We have effectively settled all tax matters with the IRS for fiscal years prior to fiscal year 2011. We believe we have adequately provided for uncertain tax issues that have not yet resolved with federal, state and foreign tax authorities.

Income Taxes

6 Months Ended

Mar. 31, 2013

Note 9 — Income Taxes

Our effective tax rate for the six months ended March 31, 2013 is lower than the U.S. federal statutory tax rate primarily due to the amount of income earned in foreign tax jurisdictions that is taxed at lower rates than the U.S. federal statutory tax rate and reinstatement of the U.S. federal research and development tax credit included in the American Taxpayer Relief Act of 2012, which was signed into law on January 2, 2013.

Our effective tax rate for the six months ended March 31, 2013 was 24% as compared to 29% for the year ended September 30, 2012. The effective tax rate for the six months ended March 31, 2013 benefitted from the retroactive extension of the federal research and development tax credit.

The amount of unrecognized tax benefits was $8.9 million as of March 31, 2013 and $8.3 million as of September 30, 2012, exclusive of interest and penalties. At March 31, 2013, the amount of unrecognized tax benefits from permanent tax adjustments that, if recognized, would favorably impact the effective rate was $6.8 million. During the next 12 months, it is reasonably possible that resolution of reviews by taxing authorities, both domestic and international, could be reached with respect to approximately $4.8 million of the unrecognized tax benefits depending on the timing of examinations and expiration of statute of limitations, either because our tax positions are sustained or because we agree to their disallowance and pay the related income tax.

We are subject to ongoing audits from various taxing authorities in the jurisdictions in which we do business. As of March 31, 2013, the tax years open under the statute of limitations in significant jurisdictions include 2007-2011 in the U.K., 2007-2011 in New Zealand and 2008-2011 in the U.S. We have effectively settled all tax matters with the IRS for fiscal years prior to fiscal year 2011. We believe we have adequately provided for uncertain tax issues that have not yet resolved with federal, state and foreign tax authorities.