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Investments (Other Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Investments
Other investments	$ 79,133	$ 86,057
Investments in LPs/LLCs, at cost [Member]
Other Investments
Other investments	44,958	53,258
Convertible Debt Securities [Member]
Other Investments
Other investments	30,611	28,958
FHLB And Other Investments [Member]
Other Investments
Other investments	$ 3,564	$ 3,841

X

- Definition

Other investments not otherwise specified in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(f,g))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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- References

No definition available.

+ Details

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- Details

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- Details

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- Details

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