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Derivative Activities (Narratives) (Details) - USD ($) | Dec. 31, 2015 | Dec. 31, 2014
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Derivative Instruments, Gain (Loss) [Line Items] |  |
Notional Amount Purchased Option | $ 3,400,000 | $ 10,700,000
Embedded Derivative, Fair Value of Embedded Derivative Liability | 1,100,000 | 5,500,000
Notional Amount Embedded Option | 3,200,000 | 10,500,000
Interest Rate Cap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative, Notional Amount | $ 109,800,000 |
Contract Termination Member | Interest Rate Cap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative, Notional Amount |  | $ 110,000,000

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Notional amount of options sold to customers embedded in the certificates of deposit. + References No definition available. + Details
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- Definition Notional amount of purchased options used to manage the exposure to the stock market on stock indexed deposits. + References No definition available. + Details
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 + Details
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