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Concentration of Credit Risk | 12 Months Ended
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Dec. 31, 2018
Risks and Uncertainties [Abstract] |
Concentration of Credit Risk | Concentration of Credit Risk The concentration of credit risk with respect to advisory fees receivable is generally limited due to the short payment terms extended to clients by the Company. The following funds provided 10 percent or more of the total revenues of the Company:
| Years Ended December 31,
($ in thousands) | 2018 |  | 2017 |  | 2016
Virtus Vontobel Emerging Markets Opportunities Fund |  |  |  |  |
Investment management, administration and shareholder service fees | $ | 52,548 |  |  | $ | 48,826 |  |  | $ | 49,085 |
Percent of total revenues | 10 | % |  | 12 | % |  | 15 | %
Virtus Newfleet Multi-Sector Short Term Bond Fund |  |  |  |  |
Investment management, administration and shareholder service fees | $ | 54,257 |  |  | $ | 44,577 |  |  | $ | 43,579 |
Percent of total revenues | 10 | % |  | 11 | % |  | 14 | %

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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- References No definition available. + Details
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