Income Taxes	9 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our consolidated effective income tax rate for the three and nine months ended June 30, 2016 was approximately 17% and 15%, as compared to 8% and 10% for the three and nine months ended June 30, 2015. The effective tax rate for the three and nine months ended June 30, 2016 was higher than the rate for the three and nine months ended June 30, 2015, primarily due to the U.S. income tax associated with the $58.9 million of gain recognized from the retirement of debt. During the quarter, as a consequence of the aforementioned gain coupled with increased profitability from our US Gulf of Mexico operations, we fully utilized our deferred tax asset of approximately $22.9 million related to our U.S. net operating loss carry-forward and we reversed the valuation allowance of an equal amount associated with that deferred tax asset. Our effective tax rate was lower than the U.S. statutory rate of 35% as a result of working in certain lower tax jurisdictions outside the United States. We record estimated accrued interest and penalties related to uncertain tax positions as income tax expense. As of June 30, 2016, we had approximately $15.4 million of reserves for uncertain tax positions, including estimated accrued interest and penalties of $4.1 million, which are included in Other long-term liabilities in the Consolidated Balance Sheet. None of our reserves for uncertain tax positions relate to timing differences. All of the net uncertain tax liabilities would affect the effective tax rate if realized. We had approximately $19.8 million of windfall tax benefits from previous stock option exercises that had not been recognized as of September 30, 2015. During the three months ended June 30, 2016, approximately $14.8 million of the these tax benefits were recognized and recorded as an increase to paid-in-capital, as the windfall benefit (embedded in our U.S. net operating loss carry-forward) reduced our income taxes payable as of June 30, 2016.

Income Taxes

9 Months Ended

Jun. 30, 2016

INCOME TAXES

Our consolidated effective income tax rate for the three and nine months ended June 30, 2016 was approximately 17% and 15%, as compared to 8% and 10% for the three and nine months ended June 30, 2015. The effective tax rate for the three and nine months ended June 30, 2016 was higher than the rate for the three and nine months ended June 30, 2015, primarily due to the U.S. income tax associated with the $58.9 million of gain recognized from the retirement of debt. During the quarter, as a consequence of the aforementioned gain coupled with increased profitability from our US Gulf of Mexico operations, we fully utilized our deferred tax asset of approximately $22.9 million related to our U.S. net operating loss carry-forward and we reversed the valuation allowance of an equal amount associated with that deferred tax asset.

Our effective tax rate was lower than the U.S. statutory rate of 35% as a result of working in certain lower tax jurisdictions outside the United States. We record estimated accrued interest and penalties related to uncertain tax positions as income tax expense. As of June 30, 2016, we had approximately $15.4 million of reserves for uncertain tax positions, including estimated accrued interest and penalties of $4.1 million, which are included in Other long-term liabilities in the Consolidated Balance Sheet. None of our reserves for uncertain tax positions relate to timing differences. All of the net uncertain tax liabilities would affect the effective tax rate if realized.

We had approximately $19.8 million of windfall tax benefits from previous stock option exercises that had not been recognized as of September 30, 2015. During the three months ended June 30, 2016, approximately $14.8 million of the these tax benefits were recognized and recorded as an increase to paid-in-capital, as the windfall benefit (embedded in our U.S. net operating loss carry-forward) reduced our income taxes payable as of June 30, 2016.