CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Acquisition of real estate investments, capitalized interest	$ 319,235	$ 220,782

Interest capitalized for real estate under development

No definition available.

Name:	adc_InterestCapitalizedForRealEstateUnderDevelopment
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration