 | us-gaap:DescriptionOfInterestRateDerivativeActivities | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:DescriptionOfInterestRateRiskExposure | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:DiscussionOfObjectivesForUsingInterestRateDerivativeInstruments | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:DiscussionOfInterestRateDerivativeRiskManagementPolicy | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:NumberOfInterestRateDerivativesHeld | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:TypesOfItemsHedgedByInterestRateDerivatives | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:PercentageOfDebtHedgedByInterestRateDerivatives | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:DescriptionOfLocationOfInterestRateDerivativesOnBalanceSheet | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:DiscussionOfMethodOfMeasuringFairValueOfInterestRateDerivatives | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:InterestRateCashFlowHedgesAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:InterestRateFairValueHedgesAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:InterestRateDerivativesAtFairValueNetAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |