Investment Securities Summary of Gains and Losses from Equity and Debt Securities, and Losses from Other-than-Temporary Impairment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gross Realized Gains	$ 2,393	$ 8,178	$ 3,835
Gross Realized Losses	(322)	(50)	0
Other- than- temporary Impairment Losses	(30)	(124)	(809)
Net Gains	2,041	8,004	3,026
Equity securities
Gross Realized Gains	335	4,391	2,620
Gross Realized Losses	0	(28)	0
Other- than- temporary Impairment Losses	(12)	(27)	(356)
Net Gains	323	4,336	2,264
Debt securities
Gross Realized Gains	2,058	3,787	1,215
Gross Realized Losses	(322)	(22)	0
Other- than- temporary Impairment Losses	(18)	(97)	(453)
Net Gains	$ 1,718	$ 3,668	$ 762

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563

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