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Income Taxes (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Begining Balance	$ 3,624	$ 3,624	$ 617
Charges to income tax expense	0	0	3,007
Settlement of uncertainty	(551)
Ending Balance	$ 3,073	$ 3,624	$ 3,624

X

- Definition

Income tax expense charge incurred during the period to increase tax reserve.

+ References

No definition available.

+ Details

Name:	mdca_ChargesOfIncomeTaxExpense
Namespace Prefix:	mdca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from all currently nondeductible expenses reflected in all reserves and accrued liabilities, which can only be deducted for tax purposes when relevant losses are realized or relevant obligations are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

+ References

No definition available.

+ Details

Name:	mdca_IncomeTaxReserve
Namespace Prefix:	mdca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Settlements of uncertainty expenses incurred during the period which resulted in a decrease in tax reserve.

+ References

No definition available.

+ Details

Name:	mdca_SettlementOfUncertainty
Namespace Prefix:	mdca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration