| **Business and Summary of Significant Accounting Principles (Business Acquisition) (Details) (USD $)In Thousands, unless otherwise specified** | 0 Months Ended | 12 Months Ended |
|------------------------------------------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Business Acquisition [Line Items]**                                                                                                          |           |            |   |   |
| Purchase of business                                                                                                                           | $ 100,000      | $ 107,600       | $ 1,874 | $ 352 |
| **Assets acquired and liabilities assumed:**                                                                                                   |           |            |   |   |
| Goodwill                                                                                                                                       |           | 219,041         | 77,294 | 74,883 |
| ACS [Member]                                                                                                                                   |           |            |   |   |
| **Business Acquisition [Line Items]**                                                                                                          |           |            |   |   |
| Purchase of business                                                                                                                           | 100,000        |            |   |   |
| Fair value of the one-third ownership interest of AWN                                                                                          | 267,642        |            |   |   |
| Total purchase price                                                                                                                           | 367,642        |            |   |   |
| **Assets acquired and liabilities assumed:**                                                                                                   |           |            |   |   |
| Current assets                                                                                                                                 | 16,952         |            |   |   |
| Property and equipment, including construction in progress                                                                                     | 82,473         |            |   |   |
| Goodwill                                                                                                                                       | 140,081        |            |   |   |
| Other assets                                                                                                                                   | 16,078         |            |   |   |
| Fair value of liabilities assumed                                                                                                              | (6,011)        |            |   |   |
| Total fair value of assets acquired and liabilities assumed                                                                                    | 367,642        |            |   |   |
| ACS [Member] | Wireless Licenses [Member]                                                                                                      |           |            |   |   |
| **Assets acquired and liabilities assumed:**                                                                                                   |           |            |   |   |
| Intangible assets                                                                                                                              | 65,433         |            |   |   |
| ACS [Member] | Rights to Use Capacity [Member]                                                                                                 |           |            |   |   |
| **Assets acquired and liabilities assumed:**                                                                                                   |           |            |   |   |
| Intangible assets                                                                                                                              | $ 52,636       |            |   |   |

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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| - Definition
Amount of assets acquired at the acquisition date.
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| - Definition
Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.
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| - Definition
The amount of identifiable intangible assets recognized as of the acquisition date.
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| - Definition
Amount of liabilities assumed at the acquisition date.
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| - Definition
Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.
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| - Definition
The amount of property, plant, and equipment recognized as of the acquisition date.
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| - Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| - Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.
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