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Commitments (Narratives) (Details) (USD $)
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3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2012
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Sep. 30, 2011
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Dec. 31, 2011
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| Revenues | $ 178,494,000 | $ 177,703,000 | $ 526,505,000 | $ 510,569,000 | |
| US Treasury Department Contribution | 1,600,000 | ||||
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Lifeline Program Support [Member]
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| Revenues | $ 3,300,000 | $ 4,200,000 | $ 11,300,000 | $ 12,900,000 | |
| X | ||||||||||
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- Definition
The amount of cash paid to settle a matter with the Federal Communication Commission and the Department of Justice. No definition available.
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| X | ||||||||||
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- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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