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Derivative Instruments and Hedging Activity (Details) (Interest Rate Swap [Member], USD $) | Dec. 31, 2014 Instruments | Dec. 31, 2013 Instruments
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Interest Rate Swap [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Number of Interest Rate Derivatives Held | 4 us-gaap_NumberOfInterestRateDerivativesHeld / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember | 3 us-gaap_NumberOfInterestRateDerivativesHeld / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember
Derivative Liability, Notional Amount | $ 146,398,078 us-gaap_DerivativeLiabilityNotionalAmount / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember | $ 82,017,758 us-gaap_DerivativeLiabilityNotionalAmount / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember

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- Details
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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 + Details
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