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Consolidation Consolidated Federated Fund VIEs (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Variable Interest Entities [Line Items] |  |
Investments—Consolidated Investment Companies | $ 33,603 | $ 45,411
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities | 11,300 | 12,700
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] |  |
Variable Interest Entities [Line Items] |  |
Investments—Consolidated Investment Companies | 31,700 | 39,700
Less: Liabilities | 600 | 400
Less: Redeemable noncontrolling interest in subsidiaries | 20,300 | 27,700
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] | Cash and Cash Equivalents [Member] |  |
Variable Interest Entities [Line Items] |  |
Consolidated VIE assets | 0 | 100
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] | Trade Accounts Receivable [Member] |  |
Variable Interest Entities [Line Items] |  |
Consolidated VIE assets | $ 500 | $ 1,000

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- Definition Fair value of noncontrolling interests which are redeemable by the parent entity and classified as other equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (12)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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