Commitments and Contingencies (Detail) - Virtus Investment Partners, Inc. Securities Litigation	Jul. 01, 2016 defendant	Apr. 21, 2015 plaintiff
Loss Contingencies [Line Items]
Number of plaintiffs \| plaintiff		3
Number of defendants dismissed \| defendant	1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Balance Type:	na
Period Type:	duration