| **Segments (Tables)**                                                                      | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
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| **Segments [Abstract]**                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| Schedule of Segment Reporting Information, by Segment [Table Text Block]                   |                    WirelessWirelineTotal Reportable Segments 2013     Revenues:      Intersegment$ - 1,418 1,418  External  33,837 152,379 186,216   Total revenues  33,837 153,797 187,634 Adjusted EBITDA$ 15,189 43,460 58,649         2012     Revenues:      Intersegment$ - 2,031 2,031  External  29,444 142,463 171,907   Total revenues  29,444 144,494 173,938 Adjusted EBITDA$ 13,073 41,756 54,829 |
| Reconciliation of Revenue from Segments to Consolidated [Table Text Block]                 |  Three Months Ended March 31, 20132012 Reportable segment revenues$ 187,634 173,938 Less intersegment revenues eliminated in   consolidation  1,418 2,031  Consolidated revenues$ 186,216 171,907                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] |  Three Months Ended March 31, 20132012 Reportable segment Adjusted EBITDA$ 58,649 54,829 Less depreciation and amortization  expense  (33,999) (32,380) Less share-based compensation  expense  (1,259) (1,730) Less non-cash contribution expense  - (800) Less net loss attributable to  non-controlling interests  (200) (177) Plus net loss (income) attributable to  equity investment  (4) 131 Less accretion expense  (127) (188)  Consolidated operating income  23,060 19,685 Less other expense  (16,904) (17,284)  Consolidated income before  income tax expense$ 6,156 2,401                                                       |

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| - Definition
Tabular disclosure of  all significant reconciling items in the reconciliation of total profit or loss from reportable segments, to the entity's consolidated income before income taxes, extraordinary items, and discontinued operations.
+ References
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| - Definition
Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues.
+ References
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| - Definition
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.
+ References
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