Income Taxes	3 Months Ended
Dec. 29, 2012
Income Tax Expense (Benefit) [Abstract]
Income Taxes	Income Taxes In the first quarter of 2013, our effective tax rate was a benefit of 197% on pre-tax income of $12.1 million compared to a provision of 26% on pre-tax income of $29.9 million in the first quarter of 2012. In the first three months of 2013, our effective tax rate was lower than the 35% statutory federal income tax rate due primarily to the reversal of a portion of our valuation allowance against net deferred tax assets described below. Additionally, we established a valuation allowance on U.S. net deferred tax assets in the fourth quarter of 2012. Our first quarter of 2013 tax benefit does not include a tax benefit on our forecast 2013 U.S. loss as it is offset by a valuation allowance. In the fourth quarter of 2012, we recorded a $124.5 million non-cash charge to the income tax provision to establish a valuation allowance against all of our U.S. deferred tax assets, which were net of approximately $28.0 million of U.S. deferred tax liabilities. In the first quarter of 2013, our acquisition of Servigistics, Inc. was accounted for as a business combination. Assets acquired, including the fair values of acquired tangible assets, intangible assets (including finite-lived acquired intangible assets totaling $118.3 million) and assumed liabilities were recorded and we recorded net deferred tax liabilities of $35.6 million primarily related to the tax effect of the acquired intangible assets that are not deductible for income tax purposes. These net deferred tax liabilities reduced our net deferred tax asset balance and resulted in a tax benefit of $32.6 million to decrease our valuation allowance in jurisdictions where we have recorded a valuation allowance (primarily the U.S.). As this decrease in the valuation allowance is not part of the accounting for the business combination (the fair value of the assets acquired and liabilities assumed) it was recorded as an income tax benefit. As of December 29, 2012 and September 30, 2012, we had unrecognized tax benefits of $18.6 million and $19.1 million, respectively. If all of our unrecognized tax benefits as of December 29, 2012 were to become recognizable in the future, we would record a benefit to the income tax provision of $17.9 million which would be partially offset by an increase in the U.S. valuation allowance of $5.8 million. Although we believe our tax estimates are appropriate, the final determination of tax audits and any related litigation could result in favorable or unfavorable changes in our estimates. We believe it is reasonably possible that within the next 12 months the amount of unrecognized tax benefits and accrued interest related to the resolution of multi-jurisdictional tax positions could be reduced by up to $0.0 million as audits close and statutes expire.

Income Taxes

3 Months Ended

Dec. 29, 2012

Income Tax Expense (Benefit) [Abstract]

In the first quarter of 2013, our effective tax rate was a benefit of 197% on pre-tax income of $12.1 million compared to a provision of 26% on pre-tax income of $29.9 million in the first quarter of 2012. In the first three months of 2013, our effective tax rate was lower than the 35% statutory federal income tax rate due primarily to the reversal of a portion of our valuation allowance against net deferred tax assets described below. Additionally, we established a valuation allowance on U.S. net deferred tax assets in the fourth quarter of 2012. Our first quarter of 2013 tax benefit does not include a tax benefit on our forecast 2013 U.S. loss as it is offset by a valuation allowance.

In the fourth quarter of 2012, we recorded a $124.5 million non-cash charge to the income tax provision to establish a valuation allowance against all of our U.S. deferred tax assets, which were net of approximately $28.0 million of U.S. deferred tax liabilities. In the first quarter of 2013, our acquisition of Servigistics, Inc. was accounted for as a business combination. Assets acquired, including the fair values of acquired tangible assets, intangible assets (including finite-lived acquired intangible assets totaling $118.3 million) and assumed liabilities were recorded and we recorded net deferred tax liabilities of $35.6 million primarily related to the tax effect of the acquired intangible assets that are not deductible for income tax purposes. These net deferred tax liabilities reduced our net deferred tax asset balance and resulted in a tax benefit of $32.6 million to decrease our valuation allowance in jurisdictions where we have recorded a valuation allowance (primarily the U.S.). As this decrease in the valuation allowance is not part of the accounting for the business combination (the fair value of the assets acquired and liabilities assumed) it was recorded as an income tax benefit.

As of December 29, 2012 and September 30, 2012, we had unrecognized tax benefits of $18.6 million and $19.1 million, respectively. If all of our unrecognized tax benefits as of December 29, 2012 were to become recognizable in the future, we would record a benefit to the income tax provision of $17.9 million which would be partially offset by an increase in the U.S. valuation allowance of $5.8 million.

Although we believe our tax estimates are appropriate, the final determination of tax audits and any related litigation could result in favorable or unfavorable changes in our estimates. We believe it is reasonably possible that within the next 12 months the amount of unrecognized tax benefits and accrued interest related to the resolution of multi-jurisdictional tax positions could be reduced by up to $0.0 million as audits close and statutes expire.