Commitments and Contingencies	6 Months Ended
Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Matters The Company is regularly involved in litigation and arbitration as well as examinations, inquiries and investigations by various regulatory bodies, including the SEC, involving its compliance with, among other things, securities laws, client investment guidelines, laws governing the activities of broker-dealers and other laws and regulations affecting its products and other activities. Legal and regulatory matters of this nature involve or may involve but are not limited to the Company’s activities as an employer, issuer of securities, investor, investment adviser, broker-dealer or taxpayer. In addition, in the normal course of business, the Company discusses matters with its regulators raised during regulatory examinations or is otherwise subject to their inquiry. These matters could result in censures, fines, penalties or other sanctions. The Company accrues for a liability when it is both probable that a liability has been incurred and the amount of the liability can be reasonably estimated. Significant judgment is required in both the determination of probability and the determination as to whether a loss is reasonably estimable. In addition, in the event the Company determines that a loss is not probable, but is reasonably possible, and it becomes possible to develop what the Company believes to be a reasonable range of possible loss, then the Company will include disclosures related to such matter as appropriate and in compliance with ASC 450, Loss Contingencies. The disclosures, accruals or estimates, if any, resulting from the foregoing analysis are reviewed at least quarterly and adjusted to reflect the impact of negotiations, settlements, rulings, advice of legal counsel and other information and events pertaining to a particular matter. Based on information currently available, available insurance coverage, indemnities and established reserves, the Company believes that the outcomes of its legal and regulatory proceedings are not likely, either individually or in the aggregate, to have a material adverse effect on the Company’s results of operations, cash flows or its consolidated financial condition. However, in the event of unexpected subsequent developments and given the inherent unpredictability of these legal and regulatory matters, the Company can provide no assurance that its assessment of any claim, dispute, regulatory examination or investigation or other legal matter will reflect the ultimate outcome and an adverse outcome in certain matters could, from time to time, have a material adverse effect on the Company’s results of operations or cash flows in particular quarterly or annual periods. In re Virtus Investment Partners, Inc. Securities Litigation; formerly Tom Cummins v. Virtus Investment Partners Inc. et al On February 20, 2015, a putative class action complaint alleging violations of certain provisions of the federal securities laws was filed by an individual shareholder against the Company and certain of the Company’s current officers (the "defendants") in the United States District Court for the Southern District of New York (the "Court"). On April 21, 2015, three plaintiffs, including the original plaintiff, filed motions to be appointed lead plaintiff and, on June 9, 2015, the Court appointed Arkansas Teachers Retirement System lead plaintiff. On August 21, 2015, the plaintiffs filed a Consolidated Class Action Complaint (the "Consolidated Complaint") amending the originally filed complaint, which was purportedly filed on behalf of all purchasers of the Company’s common stock between January 25, 2013 and May 11, 2015 (the "Class Period"). The Consolidated Complaint alleges that, during the Class Period, the defendants disseminated materially false and misleading statements and concealed material adverse facts relating to certain funds formerly subadvised by F-Squared Investments Inc. ("F-Squared"). The Consolidated Complaint alleges claims under Sections 10(b) and 20(a) of the Exchange Act, and Rule 10b-5. A motion to dismiss the Consolidated Complaint was filed on behalf of the Company and the other defendants on October 21, 2015. On July 1, 2016, the Court entered an opinion and order granting in part, and denying in part, the motion to dismiss, narrowing plaintiffs' claims under Sections 10(b) and 20(a) of the Exchange Act and dismissing one of the defendants from the suit. The remaining defendants' Answer to the Consolidated Complaint was filed on August 5, 2016. Plaintiffs' motion for class certification was granted on May 15, 2017. The Company believes that the suit is without merit, nonetheless, on February 6, 2018, it reached an agreement in principle with the plaintiffs, subject to Court approval, settling all claims in the litigation, in order to avoid the cost, distraction, disruption, and inherent litigation uncertainty. The parties executed a final settlement agreement on May 18, 2018. On June 28, 2018, the Court entered an order preliminarily approving the settlement and scheduling a hearing for final approval on October 24, 2018. Upon final approval by the Court, which the Company believes is likely, the resolution of this matter will not have a material impact on the Company’s results of operations, cash flows or its consolidated financial condition.

Commitments and Contingencies

Legal Matters

The Company is regularly involved in litigation and arbitration as well as examinations, inquiries and investigations by various regulatory bodies, including the SEC, involving its compliance with, among other things, securities laws, client investment guidelines, laws governing the activities of broker-dealers and other laws and regulations affecting its products and other activities. Legal and regulatory matters of this nature involve or may involve but are not limited to the Company’s activities as an employer, issuer of securities, investor, investment adviser, broker-dealer or taxpayer. In addition, in the normal course of business, the Company discusses matters with its regulators raised during regulatory examinations or is otherwise subject to their inquiry. These matters could result in censures, fines, penalties or other sanctions.

The Company accrues for a liability when it is both probable that a liability has been incurred and the amount of the liability can be reasonably estimated. Significant judgment is required in both the determination of probability and the determination as to whether a loss is reasonably estimable. In addition, in the event the Company determines that a loss is not probable, but is reasonably possible, and it becomes possible to develop what the Company believes to be a reasonable range of possible loss, then the Company will include disclosures related to such matter as appropriate and in compliance with ASC 450, Loss Contingencies. The disclosures, accruals or estimates, if any, resulting from the foregoing analysis are reviewed at least quarterly and adjusted to reflect the impact of negotiations, settlements, rulings, advice of legal counsel and other information and events pertaining to a particular matter. Based on information currently available, available insurance coverage, indemnities and established reserves, the Company believes that the outcomes of its legal and regulatory proceedings are not likely, either individually or in the aggregate, to have a material adverse effect on the Company’s results of operations, cash flows or its consolidated financial condition. However, in the event of unexpected subsequent developments and given the inherent unpredictability of these legal and regulatory matters, the Company can provide no assurance that its assessment of any claim, dispute, regulatory examination or investigation or other legal matter will reflect the ultimate outcome and an adverse outcome in certain matters could, from time to time, have a material adverse effect on the Company’s results of operations or cash flows in particular quarterly or annual periods.

In re Virtus Investment Partners, Inc. Securities Litigation; formerly Tom Cummins v. Virtus Investment Partners Inc.

et al

On February 20, 2015, a putative class action complaint alleging violations of certain provisions of the federal securities laws was filed by an individual shareholder against the Company and certain of the Company’s current officers (the "defendants") in the United States District Court for the Southern District of New York (the "Court"). On April 21, 2015, three plaintiffs, including the original plaintiff, filed motions to be appointed lead plaintiff and, on June 9, 2015, the Court appointed Arkansas Teachers Retirement System lead plaintiff. On August 21, 2015, the plaintiffs filed a Consolidated Class Action Complaint (the "Consolidated Complaint") amending the originally filed complaint, which was purportedly filed on behalf of all purchasers of the Company’s common stock between January 25, 2013 and May 11, 2015 (the "Class Period"). The Consolidated Complaint alleges that, during the Class Period, the defendants disseminated materially false and misleading statements and concealed material adverse facts relating to certain funds formerly subadvised by F-Squared Investments Inc. ("F-Squared"). The Consolidated Complaint alleges claims under Sections 10(b) and 20(a) of the Exchange Act, and Rule 10b-5. A motion to dismiss the Consolidated Complaint was filed on behalf of the Company and the other defendants on October 21, 2015. On July 1, 2016, the Court entered an opinion and order granting in part, and denying in part, the motion to dismiss, narrowing plaintiffs' claims under Sections 10(b) and 20(a) of the Exchange Act and dismissing one of the defendants from the suit. The remaining defendants' Answer to the Consolidated Complaint was filed on August 5, 2016. Plaintiffs' motion for class certification was granted on May 15, 2017. The Company believes that the suit is without merit, nonetheless, on February 6, 2018, it reached an agreement in principle with the plaintiffs, subject to Court approval, settling all claims in the litigation, in order to avoid the cost, distraction, disruption, and inherent litigation uncertainty. The parties executed a final settlement agreement on May 18, 2018. On June 28, 2018, the Court entered an order preliminarily approving the settlement and scheduling a hearing for final approval on October 24, 2018. Upon final approval by the Court, which the Company believes is likely, the resolution of this matter will not have a material impact on the Company’s results of operations, cash flows or its consolidated financial condition.