Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 13: Income Taxes At the end of each quarter, we estimate the effective tax rate expected to be applied for the full year. The effective income tax rate is determined by the level and composition of pre-tax income or loss, which is subject to federal, foreign, state and local income taxes. The effective income tax rate for the three months ended March 31, 2018 and 2017 was approximately 25 percent and 34 percent, respectively, which decreased primarily due to a decrease in the federal corporate income tax rate as a result of the Tax Cut and Jobs Act (the “Act”) that was passed on December 22, 2017. We are applying the guidance in SEC Staff Accounting Bulletin 118 (“SAB 118”) when accounting for the enactment-date effects of the Act. As of March 31, 2018, there has been no adjustment to the previously disclosed provisional amounts of the Act’s effects on the one-time repatriation tax and the existing deferred tax balances. Furthermore, we have not yet elected an accounting policy to account for the tax upon Global Intangible Low-Taxed Income (“GILTI”) in either of the following ways: 1) as a period charge in the future period the tax arises or 2) as part of deferred taxes related to the investment or subsidiary, given the complexities of the GILTI taxation. As of March 31, 2018, we did not have any GILTI tax net of applicable foreign tax credit.

Note 13: Income Taxes

At the end of each quarter, we estimate the effective tax rate expected to be applied for the full year. The effective income tax rate is determined by the level and composition of pre-tax income or loss, which is subject to federal, foreign, state and local income taxes. The effective income tax rate for the three months ended March 31, 2018 and 2017 was approximately 25 percent and 34 percent, respectively, which decreased primarily due to a decrease in the federal corporate income tax rate as a result of the Tax Cut and Jobs Act (the “Act”) that was passed on December 22, 2017.

We are applying the guidance in SEC Staff Accounting Bulletin 118 (“SAB 118”) when accounting for the enactment-date effects of the Act. As of March 31, 2018, there has been no adjustment to the previously disclosed provisional amounts of the Act’s effects on the one-time repatriation tax and the existing deferred tax balances.

Furthermore, we have not yet elected an accounting policy to account for the tax upon Global Intangible Low-Taxed Income (“GILTI”) in either of the following ways: 1) as a period charge in the future period the tax arises or 2) as part of deferred taxes related to the investment or subsidiary, given the complexities of the GILTI taxation. As of March 31, 2018, we did not have any GILTI tax net of applicable foreign tax credit.