Income Taxes	6 Months Ended
Mar. 31, 2014
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company’s income tax expense for the three and six months ended March 31, 2014 was $70.9 million and $137.5 million, respectively, compared to $31.1 million and $72.7 million in the same periods of fiscal 2013. The effective tax rate was 35.1% for both the three and six months ended March 31, 2014, compared to 21.9% and 29.1% in the same periods of fiscal 2013. The effective tax rate for the three and six months ended March 31, 2014 includes a tax benefit for the domestic production activities deduction that is offset by a similar amount of expense for state income taxes. The Company’s tax benefit for the domestic production activities deduction was limited in fiscal 2013 because of utilization of a net operating loss (NOL) carryforward. The low effective tax rate during the 2013 periods is primarily due to an $18.7 million reduction in the Company's valuation allowance on its deferred tax assets. At March 31, 2014 and September 30, 2013, the Company had deferred tax assets, net of deferred tax liabilities, of $601.1 million and $617.6 million, respectively, partially offset by valuation allowances of $31.3 million and $31.0 million, respectively. The valuation allowance for both periods relates to the Company’s state deferred tax assets for NOL carryforwards. The Company believes it is more likely than not that a portion of its state NOL carryforwards will not be realized because some state NOL carryforward periods are too brief to realize the related deferred tax assets. When assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of its deferred tax assets will not be realized. The realization of deferred tax assets is dependent upon the generation of sufficient taxable income in future periods. The Company records a valuation allowance when it determines it is more likely than not that a portion of the deferred tax assets will not be realized. The accounting for deferred taxes is based upon estimates of future results. Differences between the anticipated and actual outcomes of these future results could have a material impact on the Company's consolidated results of operations or financial position. Also, changes in existing federal and state tax laws and tax rates could affect future tax results and the valuation of the Company's deferred tax assets.

INCOME TAXES

The Company’s income tax expense for the three and six months ended March 31, 2014 was $70.9 million and $137.5 million, respectively, compared to $31.1 million and $72.7 million in the same periods of fiscal 2013. The effective tax rate was 35.1% for both the three and six months ended March 31, 2014, compared to 21.9% and 29.1% in the same periods of fiscal 2013. The effective tax rate for the three and six months ended March 31, 2014 includes a tax benefit for the domestic production activities deduction that is offset by a similar amount of expense for state income taxes. The Company’s tax benefit for the domestic production activities deduction was limited in fiscal 2013 because of utilization of a net operating loss (NOL) carryforward. The low effective tax rate during the 2013 periods is primarily due to an $18.7 million reduction in the Company's valuation allowance on its deferred tax assets.

At March 31, 2014 and September 30, 2013, the Company had deferred tax assets, net of deferred tax liabilities, of $601.1 million and $617.6 million, respectively, partially offset by valuation allowances of $31.3 million and $31.0 million, respectively. The valuation allowance for both periods relates to the Company’s state deferred tax assets for NOL carryforwards. The Company believes it is more likely than not that a portion of its state NOL carryforwards will not be realized because some state NOL carryforward periods are too brief to realize the related deferred tax assets.

When assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of its deferred tax assets will not be realized. The realization of deferred tax assets is dependent upon the generation of sufficient taxable income in future periods. The Company records a valuation allowance when it determines it is more likely than not that a portion of the deferred tax assets will not be realized. The accounting for deferred taxes is based upon estimates of future results. Differences between the anticipated and actual outcomes of these future results could have a material impact on the Company's consolidated results of operations or financial position. Also, changes in existing federal and state tax laws and tax rates could affect future tax results and the valuation of the Company's deferred tax assets.