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Employee Benefit Plans (Details 8)	12 Months Ended
	Dec. 31, 2012
Defined Benefit Plan, Target Allocation	100.00%
Defined Benefit Plan, Plan Assets	100.00%
Equity Securities [Member]
Defined Benefit Plan, Target Allocation	60.00%
Defined Benefit Plan, Plan Assets	56.50%
Debt Securities [Member]
Defined Benefit Plan, Target Allocation	40.00%
Defined Benefit Plan, Plan Assets	40.90%
Cash and Cash Equivalents [Member]
Defined Benefit Plan, Target Allocation	0.00%
Defined Benefit Plan, Plan Assets	2.60%

X

- Definition

The current allocation of plan assets as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	mdca_DefinedBenefitPlanPlanAssets
Namespace Prefix:	mdca_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(i)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration