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Income Taxes (Notes)
3 Months Ended
Mar. 31, 2017
Income Taxes [Abstract]  
Income Tax Disclosure [Text Block]
Income Taxes

The effective tax rate was (23)% and (17)% for the three months ended March 31, 2017 and 2016, respectively. The change in the effective tax rate was primarily attributable to the amount and distribution of income and losses among the various jurisdictions in which we operate. The effective tax rates were also impacted by operating gains and losses generated in jurisdictions where no tax expense or benefit was recognized due to the maintenance of a full valuation allowance.

For the three months ended March 31, 2017 and 2016, income tax expense relates primarily to income from certain foreign operations. Losses in the United States and certain foreign jurisdictions had no impact on income tax expense as no tax benefit was recognized due to the maintenance of a full valuation allowance.