| **Segments (Tables)**                                                                      | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
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| **Segments [Abstract]**                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| Schedule of Segment Reporting Information, by Segment [Table Text Block]                   |                Three Months Ended Six Months Ended  WirelessWirelineTotal Reportable Segments WirelessWirelineTotal Reportable SegmentsJune 30, 2013        Revenues$ 35,559 154,102 189,661  69,396 306,481 375,877Adjusted EBITDA$ 14,273 47,866 62,139  29,462 91,326 120,788           June 30, 2012        Revenues$ 30,360 145,744 176,104  59,804 288,207 348,011Adjusted EBITDA$ 12,590 46,831 59,421  25,663 88,587 114,250                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] |     Three Months Ended June 30, Six Months Ended June 30,   2013 2012 2013 2012 Reportable segment Adjusted EBITDA$ 62,139  59,421  120,788  114,250 Less depreciation and amortization  expense  (34,396)  (33,350)  (68,395)  (65,730) Less share-based compensation  expense  (1,647)  (865)  (2,906)  (2,595) Less non-cash contribution expense  -  (160)  -  (960) Less net loss attributable to  non-controlling interests  (197)  (177)  (397)  (354) Plus net loss (income) attributable to  equity investment  (49)  (84)  (53)  47 Less accretion expense  (155)  (152)  (282)  (340)  Consolidated operating income  25,695  24,633  48,755  44,318 Less other expense  (17,474)  (16,860)  (34,378)  (34,144)  Consolidated income before  income tax expense$ 8,221  7,773  14,377  10,174 |

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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 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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