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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2014
Accounting Policies [Abstract] |
Revenue and Expense Recognized for Advertising Barter Transactions | The amount of revenue and expense recognized for advertising barter transactions is as follows:
|  | 2014 |  |  | 2013 |  |  | 2012 |
Net revenues |  | $ | 7,839 |  |  | $ | 7,862 |  |  | $ | 6,798 |
Direct advertising expenses |  | $ | 2,928 |  |  | $ | 3,005 |  |  | $ | 2,900 |
General and administrative expenses |  | $ | 4,675 |  |  | $ | 4,417 |  |  | $ | 3,699 |

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