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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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Financing Receivable, Modifications, Proceeds From Principal Payments

+ References

No definition available.

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Investments - Troubled Debt Restructuring (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended	12 Months Ended
	Aug. 31, 2013 loan	Mar. 31, 2015 loan	Dec. 31, 2014 loan
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans		$ 15.7	27.3
Cross collateralized, cross defaulted
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	39.4
Number of troubled debt restructurings	20
Financing Receivable, Modifications, Pre-Modification Recorded Investment	39.4
Commercial mortgage loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	26.7
Number of troubled debt restructurings	12	12
Financing Receivable, Modifications, Pre-Modification Recorded Investment	26.7
Amount of principal repaid on troubled debt restructurings		23.7
Troubled debt restructured loans		$ 15.7
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructurings		0	0
Private Placement Debt [Member]
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructurings		0	0