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Real Estate Investments (Details Textual) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2004 | Jul. 31, 2004
Real Estate Properties [Line Items] |  |  |  |  |
Deferred Revenue | $ 1,004,023 us-gaap_DeferredRevenue | $ 1,467,403 us-gaap_DeferredRevenue |  |  |
Deferred Revenue Revenue Recognization Period | 2 years 2 months 12 days |  |  |  |
Operating Leases, Rent Expense | 471,840 us-gaap_LeaseAndRentalExpense | 427,900 us-gaap_LeaseAndRentalExpense | 574,300 us-gaap_LeaseAndRentalExpense |  |
Impairment of Real Estate | 3,020,000 us-gaap_ImpairmentOfRealEstate | 450,000 us-gaap_ImpairmentOfRealEstate | 0 us-gaap_ImpairmentOfRealEstate |  |
Operating Leases, Rent Expense, Minimum Rentals | 90,000 us-gaap_OperatingLeasesRentExpenseMinimumRentals |  |  |  |
Corporate Joint Venture [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Deferred Revenue, Additions |  |  |  | 4,000,000 us-gaap_DeferredRevenueAdditions / dei_LegalEntityAxis = us-gaap_CorporateJointVentureMember |
Deferred Revenue |  |  |  |  | 4,000,000 us-gaap_DeferredRevenue / dei_LegalEntityAxis = us-gaap_CorporateJointVentureMember
Petoskey Town Center [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Impairment of Real Estate | 220,000 us-gaap_ImpairmentOfRealEstate / us-gaap_RealEstatePropertiesAxis = adc_PetoskeyTownCenterMember |  |  |  |
Chippewa Commons [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Impairment of Real Estate | 2,800,000 us-gaap_ImpairmentOfRealEstate / us-gaap_RealEstatePropertiesAxis = adc_ChippewaCommonsMember |  |  |  |
Ironwood Commons [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Impairment of Real Estate |  | 450,000 us-gaap_ImpairmentOfRealEstate / us-gaap_RealEstatePropertiesAxis = adc_IronwoodCommonsMember |  |  |
Seventy Seven Retail Net Lease Assets [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Payments to Acquire Property, Plant, and Equipment | 148,400,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_SeventySevenRetailNetLeaseAssetsMember |  |  |  |
Weighted Average Capitalization Rate For Acquired Assets | 8.20%adc_WeightedAverageCapitalizationRateForAcquiredAssets / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_SeventySevenRetailNetLeaseAssetsMember |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 14 years 1 month 6 days |  |  |  |
Percentage Of Control Of Assets | 100.00%adc_PercentageOfControlOfAssets / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_SeventySevenRetailNetLeaseAssetsMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land | 29,969,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_SeventySevenRetailNetLeaseAssetsMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings | 95,977,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_SeventySevenRetailNetLeaseAssetsMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 22,265,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_SeventySevenRetailNetLeaseAssetsMember |  |  |  |
Eighteen Retail Net Lease Assets [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Payments to Acquire Property, Plant, and Equipment |  | 73,269,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_EighteenRetailNetLeaseAssetsMember |  |  |
Weighted Average Capitalization Rate For Acquired Assets |  | 8.00%adc_WeightedAverageCapitalizationRateForAcquiredAssets / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_EighteenRetailNetLeaseAssetsMember |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 10 years 10 months 24 days |  |  |
Percentage Of Control Of Assets |  | 100.00%adc_PercentageOfControlOfAssets / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_EighteenRetailNetLeaseAssetsMember |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land |  | 13,535,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_EighteenRetailNetLeaseAssetsMember |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings |  | 53,565,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_EighteenRetailNetLeaseAssetsMember |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | $ 6,872,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_PropertyPlantAndEquipmentByTypeAxis = adc_EighteenRetailNetLeaseAssetsMember |  |  |
Operating Leases, Future Minimum Payments Receivable [Member] | Walgreens [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Concentration Risk, Percentage | 25.40%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = adc_OperatingLeasesFutureMinimumPaymentsReceivableMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = adc_WalgreensMember |  |  |  |

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- Definition Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- Definition This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7661868&loc=d3e34039-112682 + Details
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