Variable Interest Entities Assets and Liabilities of Unconsolidated VIEs and Federated's Maximum Risk of Loss (Details) (USD $) In Millions	Sep. 30, 2011		Dec. 31, 2010
Investments in money market products included in cash and cash equivalents	$ 99.2		$ 191.2
Investments in products	270.8		297.0
Investments in money market products included in investments	171.6		105.8
Investment Companies [Member]
Unconsolidated VIE assets	277,285.8	[1]	275,365.1	[1]
Total remaining carrying value of investment and maximum risk of loss	270.8	[1]	297.0	[1]
Collateralized Debt Obligations [Member]
Unconsolidated VIE assets	2.0	[2]	12.8	[2]
Unconsolidated VIE liabilities	12.0	[2]	121.6	[2]
Total remaining carrying value of investment and maximum risk of loss	0	[2]	0	[2]
Equity Investment [Member]
Unconsolidated VIE assets	4.6		6.4
Unconsolidated VIE liabilities	0.6		2.4
Total remaining carrying value of investment and maximum risk of loss	$ 7.2		$ 7.4

[1] The unconsolidated VIE assets for the investment companies represent total net assets under management for the related investment companies. Of Federated’s $270.8 million invested in these entities at September 30, 2011, $99.2 million represents investments in money market funds included in Cash and cash equivalents, with the remaining $171.6 million included in Investments on the Consolidated Balance Sheets. Of Federated’s $297.0 million invested in these entities at December 31, 2010, $191.2 million represents investments in money market funds included in Cash and cash equivalents, with the remaining $105.8 million included in Investments on the Consolidated Balance Sheets.

[2] The risk of loss does not include the potential loss associated with related deferred tax assets expiring unutilized.