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Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2013
Revenues | The following table presents the Company’s revenues, by revenue source, for the periods presented (in thousands):
|  | Nine months ended September 30, |  |  | Three months ended September 30, |
|  | 2012 |  |  | 2013 |  |  | 2012 |  |  | 2013 |
Partner and Other Revenue Sources |  | $ | 91,372 |  |  | $ | 105,743 |  |  | $ | 31,664 |  |  | $ | 37,412 |
Proprietary Web site Traffic Sources and Other Revenue |  |  | 8,986 |  |  |  | 7,127 |  |  |  | 2,027 |  |  |  | 3,148 |
Total Revenue |  | $ | 100,358 |  |  | $ | 112,870 |  |  | $ | 33,691 |  |  | $ | 40,560 |

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- Definition Revenue by revenue source. + References No definition available. + Details
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Namespace Prefix: | mchx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration