Investment Securities Summary of Gains and Losses from Equity and Debt Securities, and Losses from Other-than-Temporary Impairment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	$ 947	$ 4,145
Gross Realized Losses	0	0
Net Gains (Losses)	947	4,145
Equity Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	733	1,970
Gross Realized Losses	0	0
Net Gains (Losses)	733	1,970
Debt Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	214	2,175
Gross Realized Losses	0	0
Net Gains (Losses)	$ 214	$ 2,175

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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