Income Taxes	6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes: As of June 30, 2016, we had no unrecognized tax benefits. We are currently under examination for our U.S. federal income taxes under the Internal Revenue Service's Compliance Assurance Program for 2016 and 2015 and are subject to examination by numerous other taxing authorities in the U.S. and in jurisdictions such as Australia, Belgium, France, Canada, and Germany. We are generally no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by taxing authorities for years prior to 2010. Since January 1, 2016, numerous states, including Delaware and the District of Columbia, have enacted legislation effective for tax years beginning on or after January 1, 2016, including changes to apportionment methodologies and tax rates. The impact of these changes is immaterial.

Income Taxes

6 Months Ended

Jun. 30, 2016

Income Taxes:

As of June 30, 2016, we had no unrecognized tax benefits.

We are currently under examination for our U.S. federal income taxes under the Internal Revenue Service's Compliance Assurance Program for 2016 and 2015 and are subject to examination by numerous other taxing authorities in the U.S. and in jurisdictions such as Australia, Belgium, France, Canada, and Germany. We are generally no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by taxing authorities for years prior to 2010.

Since January 1, 2016, numerous states, including Delaware and the District of Columbia, have enacted legislation effective for tax years beginning on or after January 1, 2016, including changes to apportionment methodologies and tax rates. The impact of these changes is immaterial.