Basis of Presentation	6 Months Ended
Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation General The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnote disclosures required by GAAP for complete consolidated financial statements and certain information and footnote disclosures included in the Company’s annual consolidated financial statements and accompanying notes included in the 2017 Form 10-K, filed with the SEC, have been condensed or omitted. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary to a fair statement of the results for the interim periods have been included. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. These financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and accompanying notes included in the 2017 Form 10-K. The Company’s significant accounting policies are described in the Notes to the Consolidated Financial Statements in the 2017 Form 10-K and updated, as necessary, in Note 3 in this Form 10-Q. The results of the Company’s operations for any interim period are not necessarily indicative of the results of operations for any other interim period or full year. All intercompany accounts and transactions have been eliminated in consolidation. The Company's international operations are immaterial, it has no unrealized gains or losses from the sale of investments and its minimal assets and liabilities are highly liquid and approximate fair value.

Basis of Presentation

General

The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnote disclosures required by GAAP for complete consolidated financial statements and certain information and footnote disclosures included in the Company’s annual consolidated financial statements and accompanying notes included in the 2017 Form 10-K, filed with the SEC, have been condensed or omitted. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary to a fair statement of the results for the interim periods have been included. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP.

These financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and accompanying notes included in the 2017 Form 10-K. The Company’s significant accounting policies are described in the Notes to the Consolidated Financial Statements in the 2017 Form 10-K and updated, as necessary, in Note 3 in this Form 10-Q. The results of the Company’s operations for any interim period are not necessarily indicative of the results of operations for any other interim period or full year.

All intercompany accounts and transactions have been eliminated in consolidation. The Company's international operations are immaterial, it has no unrealized gains or losses from the sale of investments and its minimal assets and liabilities are highly liquid and approximate fair value.