Income Taxes	3 Months Ended
Dec. 31, 2011
Income Taxes [Abstract]
Income Taxes	(6) Income Taxes The effective tax rate was 35.0% and 31.4% for the first fiscal quarters of 2012 and 2011, respectively. The increase in effective tax rate was due primarily to an increase in the blended state tax rate as a result of acquisitions and the expiration of the R&D tax credit as of December 31, 2011. In the prior year, the effective tax rate was lower due to the enactment of the R&D credit for calendar year 2010 in the first fiscal quarter of 2011. As of December 31, 2011, the Company's U.S. income tax returns for fiscal 2008 and subsequent years remained subject to examination by the Internal Revenue Service ("IRS"). The Company is not currently under any income tax audit by the IRS, state or foreign jurisdictions. State income tax returns generally have statute of limitations for periods between three and four years from the date of filing. The Company's foreign operations have statute of limitations on the examination of tax returns for periods between two and six years. The Company's uncertain tax reserves are reviewed periodically and are adjusted as events occur that affect the estimated liability for additional taxes, such as the lapsing of applicable statute of limitations, the conclusion of tax audits and the measurement of additional tax. During the first quarter of fiscal 2012, the Company recognized a tax benefit of $17 due to the settlement of an audit. The amount of unrecognized tax benefits and the related interest and penalties as of December 31, 2011 was $721. The amount of unrecognized tax benefits and the related interest and penalties expected to reverse within the next 12 months is estimated to be approximately $160 to $180.

Income Taxes

3 Months Ended

Dec. 31, 2011

(6) Income Taxes

The effective tax rate was 35.0% and 31.4% for the first fiscal quarters of 2012 and 2011, respectively. The increase in effective tax rate was due primarily to an increase in the blended state tax rate as a result of acquisitions and the expiration of the R&D tax credit as of December 31, 2011. In the prior year, the effective tax rate was lower due to the enactment of the R&D credit for calendar year 2010 in the first fiscal quarter of 2011.

As of December 31, 2011, the Company's U.S. income tax returns for fiscal 2008 and subsequent years remained subject to examination by the Internal Revenue Service ("IRS"). The Company is not currently under any income tax audit by the IRS, state or foreign jurisdictions. State income tax returns generally have statute of limitations for periods between three and four years from the date of filing. The Company's foreign operations have statute of limitations on the examination of tax returns for periods between two and six years.

The Company's uncertain tax reserves are reviewed periodically and are adjusted as events occur that affect the estimated liability for additional taxes, such as the lapsing of applicable statute of limitations, the conclusion of tax audits and the measurement of additional tax. During the first quarter of fiscal 2012, the Company recognized a tax benefit of $17 due to the settlement of an audit. The amount of unrecognized tax benefits and the related interest and penalties as of December 31, 2011 was $721. The amount of unrecognized tax benefits and the related interest and penalties expected to reverse within the next 12 months is estimated to be approximately $160 to $180.