Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Deferred Acquisition Consideration, Fixed Payments	$ 39,457	$ 33,141
Business Acquisition, Contingent Consideration Potential Cash Payment, Total	$ 291,727	$ 205,368

The aggregate amount of deferred acquisition consideration as of the reporting date.

No definition available.

Name:	mdca_BusinessAcquisitionContingentConsiderationPotentialCashPaymentTotal
Namespace Prefix:	mdca_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant