Income Taxes	3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We had an income tax benefit of $9.2 million in the three months ended March 31, 2017, as compared to an income tax provision of $14.1 million in the three months ended March 31, 2016. The significant reduction in our income taxes was primarily due to the recognition of excess tax benefits of $28.8 million as a component of the provision for income taxes resulting from the adoption of ASU 2016-09, offset by an increase in the tax provision driven by higher profits before income taxes. We operate in a number of tax jurisdictions and are subject to taxes in each country or jurisdiction in which we conduct business. As we expand internationally, our marginal tax rate may decrease; however, there can be no certainty that our marginal tax rate will decrease, and we may experience changes in tax rates that are not reflective of actual changes in our business or operations. Earnings from our non-U.S. activities are subject to local country income tax and may be subject to U.S. income tax. Generally, the U.S. tax obligation is reduced by a credit for foreign income taxes paid on these earnings avoiding double taxation. We have been selected for examination by the Internal Revenue Service ("IRS") for our 2013 and 2014 tax years and the subsequent years remain open for audit. It is difficult to determine when the examinations will be settled or their final outcomes in the foreseeable future. We believe that we have adequately provided reserves for any reasonably foreseeable adjustment to our tax returns. It is likely that within the next 12 months that either the IRS examination for tax year 2013 and 2014 will be settled or the statute of limitations will run for jurisdictions in which we have unrecognized tax benefits recorded. The settlement or statute lapse would result in a reduction of the unrecognized tax benefit recorded. The reduction may range from no change up to approximately $3.7 million. Our gross unrecognized tax benefits as of March 31, 2017 were $29.9 million. If the gross unrecognized tax benefits as of March 31, 2017 were realized in future periods, this could result in a tax benefit of $16.9 million within our provision of income taxes.

Income Taxes

3 Months Ended

Mar. 31, 2017

We had an income tax benefit of $9.2 million in the three months ended March 31, 2017, as compared to an income tax provision of $14.1 million in the three months ended March 31, 2016. The significant reduction in our income taxes was primarily due to the recognition of excess tax benefits of $28.8 million as a component of the provision for income taxes resulting from the adoption of ASU 2016-09, offset by an increase in the tax provision driven by higher profits before income taxes.

We operate in a number of tax jurisdictions and are subject to taxes in each country or jurisdiction in which we conduct business. As we expand internationally, our marginal tax rate may decrease; however, there can be no certainty that our marginal tax rate will decrease, and we may experience changes in tax rates that are not reflective of actual changes in our business or operations. Earnings from our non-U.S. activities are subject to local country income tax and may be subject to U.S. income tax. Generally, the U.S. tax obligation is reduced by a credit for foreign income taxes paid on these earnings avoiding double taxation.

We have been selected for examination by the Internal Revenue Service ("IRS") for our 2013 and 2014 tax years and the subsequent years remain open for audit. It is difficult to determine when the examinations will be settled or their final outcomes in the foreseeable future. We believe that we have adequately provided reserves for any reasonably foreseeable adjustment to our tax returns. It is likely that within the next 12 months that either the IRS examination for tax year 2013 and 2014 will be settled or the statute of limitations will run for jurisdictions in which we have unrecognized tax benefits recorded. The settlement or statute lapse would result in a reduction of the unrecognized tax benefit recorded. The reduction may range from no change up to approximately $3.7 million.

Our gross unrecognized tax benefits as of March 31, 2017 were $29.9 million. If the gross unrecognized tax benefits as of March 31, 2017 were realized in future periods, this could result in a tax benefit of $16.9 million within our provision of income taxes.