FINANCIAL INFORMATION Recent Accounting Pronouncements To Be Adopted (Policies)	6 Months Ended
	Jun. 30, 2018
Income Tax, Policy [Policy Text Block]	On December 22, 2017, the Tax Cuts and Jobs Act (“TCJA”) was signed into law. The TCJA changed many aspects of U.S. corporate income taxation and included reduction of the corporate income tax rate from 35% to 21% , implementation of a territorial tax system and imposition of a tax on deemed repatriated earnings of foreign subsidiaries. The TCJA was effective as of December 31, 2017 and at that time we made a reasonable estimate of the effects on our existing deferred tax balances and the one-time transition tax. As of June 30, 2018, we have not completed our accounting for the tax effects of the TCJA nor have we recorded any adjustments during the quarter ended June 30, 2018. We will continue to assess our provision for income taxes as future guidance is issued, but do not currently anticipate significant revisions will be necessary. Any such revisions will be treated in accordance with the one year measurement period guidance outlined in Staff Accounting Bulletin No. 118. The ultimate impact may differ from these provisional amounts, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions we have made, additional regulatory guidance that may be issued, and actions we may take as a result of the TCJA. The accounting is expected to be complete within the one year measurement period particularly after the 2017 U.S. corporate income tax return is filed in 2018.
New Accounting Pronouncement, Early Adoption [Table Text Block]	Recently Adopted Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements to be Adopted On February 25, 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The guidance requires an entity to recognize virtually all of their leases on the balance sheet, by recording a right-of-use asset and lease liability. The new guidance becomes effective for us on January 1, 2019, and early adoption is permitted upon issuance. We are currently evaluating the impact of this guidance on our consolidated financial statements and have compiled an initial inventory of our leases. These leases are primarily related to office space in the United States and foreign locations and are currently classified as operating leases under generally accepted accounting principles.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.