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Derivative Financial Instruments (Details 1) (Interest Rate Contracts One [Member], Derivative in cash flow hedging relationship [Member], USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Interest Rate Contracts One [Member] | Derivative in cash flow hedging relationship [Member] |  |  |  |
Effect of the derivative instruments on the consolidated statement of income Derivative in cash flow hedging relationship |  |  |  |
Amount of Loss Recognized in Other Comprehensive Income on Derivative (Effective Portion) | $ 1,028 | $ (785) | $ 1,313 | $ (419)

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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + 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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- Details
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