Basis of Presentation and Principles of Consolidation (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015 entity
Consolidated VIEs
Total revenues and total expenses related to consolidated VIEs
Number of variable interest entities (in investments)	4
Variable interest entity, consolidated, carrying amount, assets	$ 162.7
Variable interest entity, consolidated, carrying amount, liabilities	13.3
Variable interest entity unfunded commitment	38.8
Unconsolidated VIEs
Total revenues and total expenses related to consolidated VIEs
Number of variable interest entities (in investments)	25
Variable interest entity unfunded commitment	22.7
Carrying value of the investments	$ 166.3

Represents the number of variable interest entities of the entity.

No definition available.

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- Definition

The amount of unfunded commitments that the entity has to the Variable Interest Entity.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (bb)

-URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5710-111685

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Details

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- Definition

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

+ References

No definition available.

+ Details

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Period Type:	instant

- Details

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- Details

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