Accrued and Other Liabilities - Textual (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accrued Liabilities and Other Liabilities [Abstract]
Accrued media cost, current	$ 201,872	$ 187,540
Trust Liability, Current	5,341	5,122
Accrued and Other Liabilities Attributable To Noncontrolling Interest	$ 4,154	$ 5,473	$ 6,014	$ 5,210

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