Investment Securities (Details 2) (Affiliated funds, USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Affiliated funds
Fair Value
Less than 12 months	$ 84,828	$ 66,858
12 months or longer	316	1,187
Total temporarily impaired securities	85,144	68,045
Unrealized losses
Less than 12 months	(6,373)	(5,362)
12 months or longer	(24)	(30)
Total Unrealized losses on temporarily impaired securities	$ (6,397)	$ (5,392)

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

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-Subparagraph (a)(1)

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This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563

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Amount of accumulated unrealized loss on securities classified as available-for-sale securities that have been in a loss position for twelve months or longer impacting investments.

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No definition available.

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Amount of accumulated unrealized loss on securities classified as available-for-sale securities, impacting investments.

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Amount of accumulated unrealized loss on securities classified as available-for-sale securities that have been in a loss position for less than twelve months impacting investments.

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No definition available.

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