Organization and Basis of Presentation (Policies)	9 Months Ended
Organization and Basis of Presentation (Policies)	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recent Developments	Recent Developments In March 2020, the Coronoavirus Aid Relief and Economic Security Act ("CARES Act") was signed into law in response to the COVID-19 pandemic, and we opted into the CARES Act payroll tax deferral program in the third quarter of 2020. See Note 9 - Coronavirus Aid Relief and Economic Security Act' for further discussion. On October 31, 2020, the Company’s then-current lease for its corporate headquarters in Reston, Virginia expired following a one-month extension of the lease term. On November 1, 2020, the Company agreed to a new lease to relocate its corporate headquarters to new office space in Reston, Virginia for a ten year term. See Note 20 - Subsequent Events for further discussion.
Use of Estimates	Use of Estimates Our condensed consolidated financial statements have been prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts for the reporting periods. We base these estimates and judgments on historical experience and on various other factors that we believe to be reasonable under the circumstances. We evaluate these estimates and judgments on an ongoing basis. Actual results may differ from those estimates under different assumptions or conditions. Material estimates are utilized in the valuation of deferred tax assets, analysis of goodwill impairment, valuation of equity-based compensation, valuation of preferred stock issuances, capitalization of costs, consolidation of variable interest entities and fair value of financial instruments (including the fair value of our equity method investments).
Recently Adopted and Issued Accounting Standards	Recently Adopted Accounting Standards In August 2018, the Financial Accounting Standards Board ("FASB") issued ASU 2018-13, “Fair Value Measurement (Topic 820) – Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”), which removes, adds and modifies certain disclosure requirements for fair value measurements in Topic 820. ASU 2018-13 removes the following disclosure requirements: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and (ii) the entity’s valuation processes for Level 3 fair value measurements. ASU 2018-13 adds the following disclosure requirements: (i) provide information about the measurement uncertainty of Level 3 fair value measurements as of the reporting date rather than a point in the future, (ii) disclose changes in unrealized gains and losses related to Level 3 measurements for the period included in other comprehensive income, and (iii) disclose for Level 3 measurements the range and weighted average of the significant unobservable inputs and the way it is calculated. ASU 2018-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. The Company adopted ASU 2018-13 prospectively as of January 1, 2020. The adoption did not have a material impact on our Consolidated Financial Statements. Recently Issued Accounting Standards In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments", which modifies how companies recognize expected credit losses on financial instruments and other commitments to extend credit held by an entity at each reporting date. Existing GAAP requires an “incurred loss” methodology whereby companies are prohibited from recording an expected loss until it is probable that the loss has been incurred. ASU 2016-13 requires companies to use a methodology that reflects current expected credit losses (“CECL”) and requires consideration of a broad range of reasonable and supportable information to record and report credit loss estimates, even when the CECL is remote. Companies will be required to record the allowance for credit losses and deduct that amount from the basis of the asset. The guidance is effective for the Company for financial statement periods beginning after December 15, 2022, although early adoption is permitted. The Company is currently evaluating the impact this guidance will have on its consolidated financial statements and related disclosures In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes", which is intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 will be effective for public business entities for annual reporting periods beginning after December 15, 2020, and interim periods within those periods. Early adoption is permitted. We do not expect the adoption of this pronouncement to have a material impact on our consolidated financial statements. We assessed other accounting pronouncements issued or effective during the three and nine months ended September 30, 2020 and deemed they were either not applicable to us or are not anticipated to have a material effect on our consolidated financial statements. Other standards previously issued and adopted by the Company have been disclosed in previous filings.