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Real Estate Investments (Details 1) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Less: Accumulated Amortization $ (6,671,752)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization $ (5,719,085)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Lease Intangible Asset, net 56,520,276us-gaap_FiniteLivedIntangibleAssetsNet 47,479,602us-gaap_FiniteLivedIntangibleAssetsNet
Leases, Acquired-in-Place [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible Lease Asset/Liability 39,244,866us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeasesAcquiredInPlaceMember
36,680,630us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeasesAcquiredInPlaceMember
Less: Accumulated Amortization (4,611,284)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeasesAcquiredInPlaceMember
(3,897,008)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeasesAcquiredInPlaceMember
Above Market Leases [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible Lease Asset/Liability 40,168,302us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_AboveMarketLeasesMember
31,642,267us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_AboveMarketLeasesMember
Less: Accumulated Amortization (4,704,243)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_AboveMarketLeasesMember
(4,111,435)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_AboveMarketLeasesMember
Below-Market Leases1 [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible Lease Asset/Liability (16,221,141)us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= adc_BelowmarketLeases1Member
(15,124,210)us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= adc_BelowmarketLeases1Member
Less: Accumulated Amortization $ 2,643,776us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= adc_BelowmarketLeases1Member
$ 2,289,358us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= adc_BelowmarketLeases1Member