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Derivative Activities (Narratives) (Details) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) | $ 1,798,000 | $ 233,000 | $ 2,189,000 | $ 4,711,000 |
Notional Amount Purchased Option | 12,000,000 |  | 12,000,000 |  | 28,000,000
Embedded Derivative, Fair Value of Embedded Derivative Liability | 5,600,000 |  | 5,600,000 |  | 15,700,000
Notional Amount Embedded Option | 11,600,000 |  | 11,600,000 |  | 26,900,000
Interest Rate Cap [Member] |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Notional Amount | 110,000,000 |  | 110,000,000 |  | 94,000,000
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) | $ 8,700,000 |  |  |  |

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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=7476318&loc=SL5624163-113959 + Details
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- Definition Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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