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The carrying amount of the trading securities - consolidated investment companies - included in the reporting entity's statement of financial position.

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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The carrying amount of assets an investment adviser manages on behalf of investors.

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No definition available.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Amount of financial support provided to a nonconsolidated legal entity that is required to comply with or operate in accordance with requirements that are similar to those included in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds.

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Portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent entity which is not redeemable by the parent entity.

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No definition available.

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Fair value of noncontrolling interests which are redeemable by the parent entity and classified as other equity.

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The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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The net carrying amount of the consolidated Variable Interest Entity's assets and liabilities included in the reporting entity's statement of financial position.

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The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Consolidation Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
Consolidation Narrative (Details) - USD ($)	Dec. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jan. 27, 2017
Variable Interest Entities [Line Items]
Accounts receivable from Federated Funds	$ 27,100,000	$ 25,400,000		$ 25,400,000
Total Fee Waivers		84,800,000	$ 112,200,000	175,300,000	$ 242,100,000
Trading Securities - Consolidated Investment Companies Carrying Amount	58,072,000	45,417,000		45,417,000
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities	14,900,000	14,700,000		14,700,000
Nonredeemable noncontrolling interest in subsidiary	958,000	0		0
Receivables	44,804,000	45,097,000		45,097,000
Financial Support, Fee Waivers [Member]
Variable Interest Entities [Line Items]
Nonconsolidated Legal Entity, Financial Support Amount		53,800,000	80,900,000	113,600,000	179,700,000
Financial Support, Capital Contributions [Member]
Variable Interest Entities [Line Items]
Nonconsolidated Legal Entity, Financial Support Amount		0	$ 0	0	$ 0
Consolidated Voting Rights Entities [Member]
Variable Interest Entities [Line Items]
Trading Securities - Consolidated Investment Companies Carrying Amount	14,900,000	1,400,000		1,400,000
Redeemable noncontrolling interest in subsidiaries	3,100,000	300,000		300,000
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entities [Line Items]
Trading Securities - Consolidated Investment Companies Carrying Amount	43,200,000	44,000,000		44,000,000
Redeemable noncontrolling interest in subsidiaries	28,300,000	30,400,000		30,400,000
Liabilities	700,000	500,000		500,000
Federated's maximum risk of loss in consolidated investment companies	14,900,000	14,700,000		14,700,000
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] \| Cash and Cash Equivalents [Member]
Variable Interest Entities [Line Items]
Consolidated VIE assets	$ 0	100,000		100,000
General Partnership and VIE [Member] \| Passport [Member]
Variable Interest Entities [Line Items]
Noncontrolling interest, ownership percentage by parent	50.50%
Noncontrolling interest, ownership percentage by noncontrolling owners	49.50%
General Partnership and VIE [Member] \| Deconsolidation [Member]
Variable Interest Entities [Line Items]
Liabilities						$ 5,300,000
Nonredeemable noncontrolling interest in subsidiary						1,000,000
Receivables						1,100,000
General Partnership and VIE [Member] \| Cash and Cash Equivalents [Member] \| Deconsolidation [Member]
Variable Interest Entities [Line Items]
Consolidated VIE assets						4,800,000
General Partnership and VIE [Member] \| Receivable [Domain] \| Deconsolidation [Member]
Variable Interest Entities [Line Items]
Consolidated VIE assets						$ 2,600,000
Non-Consolidated Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entities [Line Items]
Carrying Value of investment of nonconsolidated VIEs	$ 2,300,000	2,100,000		2,100,000
Federated's maximum risk of loss in consolidated investment companies	2,300,000	2,100,000		2,100,000
AUM for nonconsolidated Federated Funds	$ 76,300,000	$ 67,900,000		$ 67,900,000