Accounting Pronouncements	3 Months Ended
Mar. 31, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update (ASU) 2014-09, "Revenue from Contracts with Customers." In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue versus Net)." The ASU clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements. In April 2016, the FASB issued ASU 2016-10, "Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing," which clarifies the guidance surrounding licensing arrangements and the identification of performance obligations. On August 12, 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which delays the effective date of ASU 2014-09 by one year. The new standard is effective for reporting periods beginning after December 15, 2017, and interim periods therein, using either of the following transition methods; (i) a full retrospective adoption reflecting the application of the standard in each prior reporting period, or (ii) a modified retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized through retained earnings at the date of adoption. Early adoption is permitted for reporting periods beginning after December 15, 2016. We are in the process of evaluating the potential revenue implications of the standard change, which may result in changes to our revenue recognition practices; the elimination of the units-of-delivery method for certain U.S. Government programs; and the elimination of the completed contract method of accounting. In January 2016, the FASB issued ASU 2016-01, "Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities." This ASU modifies how entities measure equity investments and present changes in the fair value of financial liabilities. Upon adoption, investments that do not result in consolidation and are not accounted for under the equity method generally must be carried at fair value, with changes in fair value recognized in net income. The provisions of this ASU are effective for years beginning after December 15, 2017. We are currently evaluating the impact of this ASU. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." Under the amendments of this ASU, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date; (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting is largely unchanged under the amendments of this ASU. The provisions of this ASU are effective for years beginning after December 15, 2018. We are currently evaluating the impact of this ASU. In March 2016, the FASB issued ASU 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting." This ASU eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment. Instead, the equity method of accounting should be applied prospectively from the date significant influence is obtained. In addition, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The provisions of this ASU are effective for years beginning after December 15, 2016. We are currently evaluating the impact of this ASU. In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." This ASU is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The provisions of this ASU are effective for years beginning after December 15, 2016. Early application is permitted. We are currently evaluating the impact of this ASU.

Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (ASU) 2014-09, "Revenue from Contracts with Customers." In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue versus Net)." The ASU clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements. In April 2016, the FASB issued ASU 2016-10, "Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing," which clarifies the guidance surrounding licensing arrangements and the identification of performance obligations. On August 12, 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which delays the effective date of ASU 2014-09 by one year. The new standard is effective for reporting periods beginning after December 15, 2017, and interim periods therein, using either of the following transition methods; (i) a full retrospective adoption reflecting the application of the standard in each prior reporting period, or (ii) a modified retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized through retained earnings at the date of adoption. Early adoption is permitted for reporting periods beginning after December 15, 2016. We are in the process of evaluating the potential revenue implications of the standard change, which may result in changes to our revenue recognition practices; the elimination of the units-of-delivery method for certain U.S. Government programs; and the elimination of the completed contract method of accounting.

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities." This ASU modifies how entities measure equity investments and present changes in the fair value of financial liabilities. Upon adoption, investments that do not result in consolidation and are not accounted for under the equity method generally must be carried at fair value, with changes in fair value recognized in net income. The provisions of this ASU are effective for years beginning after December 15, 2017. We are currently evaluating the impact of this ASU.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." Under the amendments of this ASU, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date; (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting is largely unchanged under the amendments of this ASU. The provisions of this ASU are effective for years beginning after December 15, 2018. We are currently evaluating the impact of this ASU.

In March 2016, the FASB issued ASU 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting." This ASU eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment. Instead, the equity method of accounting should be applied prospectively from the date significant influence is obtained. In addition, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The provisions of this ASU are effective for years beginning after December 15, 2016. We are currently evaluating the impact of this ASU.

In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." This ASU is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The provisions of this ASU are effective for years beginning after December 15, 2016. Early application is permitted. We are currently evaluating the impact of this ASU.