Accruals and Other Liabilities (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Accrued and Other Liabilities [Abstract]
Accrued Media Cost, Current	$ 144,864	$ 187,540
Accrued and Other Liabilities Attributable To Noncontrolling Interest	$ 3,255	$ 5,473	$ 6,014

Carrying value as of the balance sheet date of accrued and other liabilities attributable to noncontrolling interest during the reporting period.

No definition available.

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