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Significant Accounting Policies (Schedule of Details about Reclassification out of Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total amount reclassified, net of tax | $ (240)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Unrealized losses on Available-for-Sale Investments [Member] |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total amount reclassified, net of tax | (735)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
Unrealized gains on Cash Flow Hedges [Member] |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Total amount reclassified, net of tax | $ 495 us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember

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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References No definition available. + Details
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