Acquisitions (Tables)	3 Months Ended
Mar. 31, 2017
Business Combinations [Abstract]
Schedule of Net Income (Loss) Attributable to Parent and Transfers to and from Noncontrolling Interest	hanges in the Company’s ownership interests in its less than 100% owned subsidiaries.

Tabular disclosure of the net income loss attributable to parent and the transfers to and from noncontrolling interest.

No definition available.

Name:	mdca_ScheduleOfNetIncomeLossAttributableToParentAndTransfersToAndFromNoncontrollingInterestTableTextBlock
Namespace Prefix:	mdca_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration