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Employee Benefit Plans (Details 8) | 12 Months Ended
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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%

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- Definition The current allocation of plan assets as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | mdca_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- 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=28361610&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=28361610&loc=d3e2446-114920 + Details
Name: | us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration