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Derivative Activities (Narratives) (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Schedule Of Trading Securities And Other Trading Assets [Line Items] |  |
Unrealized Gain Loss On Derivatives | $ 2,800,000 | $ 4,300,000
Notional Amount Purchased Option |  | 3,400,000
Embedded Derivative, Fair Value of Embedded Derivative Liability |  | 1,100,000
Derivative Assets | 1,503,000 | 3,025,000
Derivative Liabilities | 4,306,000 | 6,162,000
Notional Amount Embedded Option |  | 3,200,000
Interest Rate Cap [Member] |  |
Schedule Of Trading Securities And Other Trading Assets [Line Items] |  |
Derivative Assets | 22,000 | 32,000
Derivative Liabilities | 22,000 | 32,000
Derivative, Notional Amount | 124,400,000 | 109,800,000
Options tied to Standard & Poor 500 Stock Market Index [Member] |  |
Schedule Of Trading Securities And Other Trading Assets [Line Items] |  |
Derivative Assets | 0 | 1,170,000
Designated as Hedging Instrument [Member] |  |
Schedule Of Trading Securities And Other Trading Assets [Line Items] |  |
Derivative Liabilities | 2,803,000 | 4,307,000
Not Designated as Hedging Instrument [Member] |  |
Schedule Of Trading Securities And Other Trading Assets [Line Items] |  |
Derivative Assets | 1,481,000 | 1,819,000
Derivative Liabilities | 1,481,000 | 1,819,000
Other derivative |  |
Schedule Of Trading Securities And Other Trading Assets [Line Items] |  |
Derivative Assets | 0 | 4,000
Derivative Liabilities | $ 0 | $ 4,000

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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 Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 + 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=56946850&loc=SL5624163-113959 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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