XML 31 R46.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Consolidation of Sponsored Investment Products - Additional Information (Detail) | 6 Months Ended
--- | ---
Jun. 30, 2013 Funds
Stockholders Equity Excluding Portion Attributable To Subsidiaries Noncontrolling Interest [Abstract] |
Number of deconsolidated mutual funds | 3
Number of additional consolidated mutual funds | 1
Number of consolidated mutual funds | 6

X
- Definition Number Of Additional Consolidated Mutual Funds + References No definition available. + Details
Name: | vrts_NumberOfAdditionalConsolidatedMutualFunds
Namespace Prefix: | vrts_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Consolidated Mutual Funds + References No definition available. + Details
Name: | vrts_NumberOfConsolidatedMutualFunds
Namespace Prefix: | vrts_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Mutual Funds Deconsolidated + References No definition available. + Details
Name: | vrts_NumberOfMutualFundsDeconsolidated
Namespace Prefix: | vrts_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | vrts_StockholdersEquityExcludingPortionAttributableToSubsidiariesNoncontrollingInterestAbstract
Namespace Prefix: | vrts_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration