Organization (Details Textual)	Dec. 31, 2015
Nature of Operations [Line Items]
Ownership Percentage On Controlling Interest By Parent	98.30%

Ownership percentage on controlling interest by parent.

No definition available.

Name:	adc_OwnershipPercentageOnControllingInterestByParent
Namespace Prefix:	adc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant