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CONSOLIDATED STATEMENTS OF CASH FLOWS [Parenthetical] (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Interest Capitalized For Real Estate Under Development | $ 149,054 | $ 0 | $ 319,235

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- Definition Interest capitalized for real estate under development + References No definition available. + Details
Name: | adc_InterestCapitalizedForRealEstateUnderDevelopment
Namespace Prefix: | adc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration