| **Derivative Financial Instruments - Effect of Derivative Financial Instruments on Income Statement (Details) (USD $)In Thousands, unless otherwise specified** | 3 Months Ended                                                                                                                                                                                                                                                                                                                                              |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| Not Designated as Hedging Instrument | Interest rate contracts | Other income                                                                                   |                                                                                                                                                                                                                                                                                                                                                        |   |
| **Derivative [Line Items]**                                                                                                                                     |                                                                                                                                                                                                                                                                                                                                                        |   |
| Amount of Gain (Loss) Recognized Income on Derivative                                                                                                           | $ (100)us-gaap_DerivativeGainLossOnDerivativeNet/ us-gaap_DerivativeInstrumentRiskAxis= us-gaap_InterestRateContractMember/ us-gaap_HedgingDesignationAxis= us-gaap_NondesignatedMember/ us-gaap_IncomeStatementLocationAxis= us-gaap_OtherIncomeMember                                                                                                     | $ 19us-gaap_DerivativeGainLossOnDerivativeNet/ us-gaap_DerivativeInstrumentRiskAxis= us-gaap_InterestRateContractMember/ us-gaap_HedgingDesignationAxis= us-gaap_NondesignatedMember/ us-gaap_IncomeStatementLocationAxis= us-gaap_OtherIncomeMember |
| Designated as Hedging Instrument | Cash Flow Hedging | Interest Expense                                                                                         |                                                                                                                                                                                                                                                                                                                                                        |   |
| **Derivative [Line Items]**                                                                                                                                     |                                                                                                                                                                                                                                                                                                                                                        |   |
| Amount of Gain (Loss) Reclassified from Other Comprehensive Income into Income (Effective Portion)                                                              | (354)us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis= us-gaap_CashFlowHedgingMember/ us-gaap_HedgingDesignationAxis= us-gaap_DesignatedAsHedgingInstrumentMember/ us-gaap_IncomeStatementLocationAxis= us-gaap_InterestExpenseMember       | (344)us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis= us-gaap_CashFlowHedgingMember/ us-gaap_HedgingDesignationAxis= us-gaap_DesignatedAsHedgingInstrumentMember/ us-gaap_IncomeStatementLocationAxis= us-gaap_InterestExpenseMember |
| Designated as Hedging Instrument | Interest rate contracts | Cash Flow Hedging                                                                                  |                                                                                                                                                                                                                                                                                                                                                        |   |
| **Derivative [Line Items]**                                                                                                                                     |                                                                                                                                                                                                                                                                                                                                                        |   |
| Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)                                                                | $ (1,276)us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet/ us-gaap_DerivativeInstrumentRiskAxis= us-gaap_InterestRateContractMember/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis= us-gaap_CashFlowHedgingMember/ us-gaap_HedgingDesignationAxis= us-gaap_DesignatedAsHedgingInstrumentMember | $ (1,266)us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet/ us-gaap_DerivativeInstrumentRiskAxis= us-gaap_InterestRateContractMember/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis= us-gaap_CashFlowHedgingMember/ us-gaap_HedgingDesignationAxis= us-gaap_DesignatedAsHedgingInstrumentMember |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959
+ Details**Name:**us-gaap_DerivativeGainLossOnDerivativeNet**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.
+ 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 (c) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624177-113959
+ Details**Name:**us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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=35706170&loc=SL5624171-113959
+ Details**Name:**us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_DerivativeLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |