Recently Issued Accounting Standards	3 Months Ended
Mar. 31, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recently Issued Accounting Standards [Text Block]	RECENTLY ISSUED ACCOUNTING STANDARDS: Accounting Standards Not Yet Effective In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which will require lessees to recognize leases on their balance sheets as a right-of-use asset with a corresponding liability. Lessees are permitted to make an accounting policy election to not recognize an asset and liability for leases with a term of 12 months or less. Additional qualitative and quantitative disclosures, including significant judgments made by management, will also be required. In January 2018, the FASB issued ASU 2018-01, which permits entities to elect an optional transition practical expedient to not evaluate under Topic 842 land easements that exist or expired before the entity's adoption of this standard and that were not previously accounted for as leases under Topic 840. The new standard will become effective for the Company beginning January 1, 2019, and the current transition guidance requires a modified retrospective transition approach. The Company is currently assessing the impact of adopting this guidance on its consolidated financial statements. At December 31, 2017, the Company disclosed approximately $615 million in aggregate future minimum operating lease payments and continues to evaluate those contracts as well as other existing arrangements to determine whether a right-of-use asset or lease liability will need to be recognized under the new standard and will assess new contracts entered into prior to the adoption of the new standard. The adoption of the new standard will result in a material increase to right of use assets and lease liabilities on the Company's consolidated balance sheet, primarily as a result of operating leases currently not recognized on the balance sheet. The Company, however, does not anticipate a material impact to net income as a result of the adoption of this new standard and is currently evaluating disclosure requirements. In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350), Simplifying the Test for Goodwill Impairment, which simplifies the subsequent measurement of goodwill by eliminating Step 2 from the goodwill impairment test. The amendments will become effective for the Company beginning January 1, 2020. Early adoption is permitted. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842), Land Easement Practical Expedient for Transition to Topic 842, which permits an entity to make an election not to apply Topic 842 to land easements that existed or expired before the effective date of Topic 842 provided that they were not previously assessed under ASC 840, Leases. Effective January 1, 2019, Topic 842 will be applied to new and modified land easements to determine whether the arrangement should be accounted for as a lease. The Company will apply this guidance upon the adoption of Topic 842 effective January 1, 2019.

RECENTLY ISSUED ACCOUNTING STANDARDS:

Accounting Standards Not Yet Effective

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which will require lessees to recognize leases on their balance sheets as a right-of-use asset with a corresponding liability. Lessees are permitted to make an accounting policy election to not recognize an asset and liability for leases with a term of 12 months or less. Additional qualitative and quantitative disclosures, including significant judgments made by management, will also be required. In January 2018, the FASB issued ASU 2018-01, which permits entities to elect an optional transition practical expedient to not evaluate under Topic 842 land easements that exist or expired before the entity's adoption of this standard and that were not previously accounted for as leases under Topic 840.

The new standard will become effective for the Company beginning January 1, 2019, and the current transition guidance requires a modified retrospective transition approach. The Company is currently assessing the impact of adopting this guidance on its consolidated financial statements. At December 31, 2017, the Company disclosed approximately $615 million in aggregate future minimum operating lease payments and continues to evaluate those contracts as well as other existing arrangements to determine whether a right-of-use asset or lease liability will need to be recognized under the new standard and will assess new contracts entered into prior to the adoption of the new standard. The adoption of the new standard will result in a material increase to right of use assets and lease liabilities on the Company's consolidated balance sheet, primarily as a result of operating leases currently not recognized on the balance sheet. The Company, however, does not anticipate a material impact to net income as a result of the adoption of this new standard and is currently evaluating disclosure requirements.

In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350), Simplifying the Test for Goodwill Impairment, which simplifies the subsequent measurement of goodwill by eliminating Step 2 from the goodwill impairment test. The amendments will become effective for the Company beginning January 1, 2020. Early adoption is permitted. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements.

In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842), Land Easement Practical Expedient for Transition to Topic 842, which permits an entity to make an election not to apply Topic 842 to land easements that existed or expired before the effective date of Topic 842 provided that they were not previously assessed under ASC 840, Leases. Effective January 1, 2019, Topic 842 will be applied to new and modified land easements to determine whether the arrangement should be accounted for as a lease. The Company will apply this guidance upon the adoption of Topic 842 effective January 1, 2019.