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	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	$ 4,145	$ 323
Gross Realized Losses	0	(323)
Net Gains (Losses)	4,145	0
Equity Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	1,970	1
Gross Realized Losses	0	0
Net Gains (Losses)	1,970	1
Debt Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	2,175	322
Gross Realized Losses	0	(323)
Net Gains (Losses)	$ 2,175	$ (1)

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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