Subsequent Event Subsequent Event - Royce Management Equity Plan (Details) - Management Equity Plan [Member] - Royce [Member] - Subsequent Event [Member] $ in Thousands	Jan. 21, 2016 USD ($)
Minimum
Subsequent Event [Line Items]
Aggregate Cost of Awards	$ 35,000
Maximum
Subsequent Event [Line Items]
Aggregate Cost of Awards	$ 50,000

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration