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v2.4.1.9

Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Segment Reporting Information [Line Items] |  |
Revenue | $ 302,222 us-gaap_SalesRevenueServicesNet | $ 274,854 us-gaap_SalesRevenueServicesNet
Other Segments |  |
Segment Reporting Information [Line Items] |  |
Revenue | 20,379 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 15,108 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
United States |  |
Segment Reporting Information [Line Items] |  |
Revenue | 252,018 us-gaap_SalesRevenueServicesNet / mdca_AllCountriesAxis = country_US | 228,833 us-gaap_SalesRevenueServicesNet / mdca_AllCountriesAxis = country_US
Canada |  |
Segment Reporting Information [Line Items] |  |
Revenue | $ 29,825 us-gaap_SalesRevenueServicesNet / mdca_AllCountriesAxis = country_CA | $ 30,913 us-gaap_SalesRevenueServicesNet / mdca_AllCountriesAxis = country_CA

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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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