| **Business and Summary of Significant Accounting Principles (Business Acquisition) (Details) (USD $)In Thousands, unless otherwise specified** |         |         | 0 Months Ended |           |
|------------------------------------------------------------------------------------------------------------------------------------------------|---------|---------|----------------|-----------|
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| **Business Acquisition [Line Items]**                                                                                                          |    |    |           |      |   |   |   |   |   |   |   |
| Cash consideration paid                                                                                                                        |    |    | $ 100,000      | $ 100,000 | $ 0 |   |   |   |   |   |   |
| Fair value of the one-third ownership interest of AWN                                                                                          |    |    | 265,511        | 267,642   | (2,131) |   |   |   |   |   |   |
| Total purchase price                                                                                                                           |    |    | 365,511        | 367,642   | (2,131) |   |   |   |   |   |   |
| **Assets acquired and liabilities assumed:**                                                                                                   |    |    |           |      |   |   |   |   |   |   |   |
| Current assets                                                                                                                                 |    |    | 16,963         | 16,952    | 11 |   |   |   |   |   |   |
| Property and equipment, including construction in progress                                                                                     |    |    | 82,611         | 82,473    | 138 |   |   |   |   |   |   |
| Goodwill                                                                                                                                       | 229,043 | 219,041 | 148,948        | 140,081   | 8,867 |   |   |   |   |   |   |
| Finite-lived intangibles                                                                                                                       |    |    |           |      |   | 60,380 | 65,433 | (5,053) | 45,338 | 52,636 | (7,298) |
| Other assets                                                                                                                                   |    |    | 17,282         | 16,078    | 1,204 |   |   |   |   |   |   |
| Fair value of liabilities assumed                                                                                                              |    |    | (6,011)        | (6,011)   | 0 |   |   |   |   |   |   |
| Total fair value of assets acquired and liabilities assumed                                                                                    |    |    | $ 365,511      | $ 367,642 | $ (2,131) |   |   |   |   |   |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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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| - 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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| - Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.
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