Intangible Assets and Goodwill (Rollforward) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Goodwill [Roll Forward] | |||
| Goodwill beginning balance | $ 239,263 | $ 229,560 | |
| Goodwill ending balance | 239,263 | 239,263 | $ 229,560 |
| Finite-lived Intangible Assets [Roll Forward] | |||
| Beginning Balance | 69,290 | 66,015 | |
| Asset additions | 17,601 | 15,023 | |
| Software impairment | (1,306) | ||
| Amortization expense | (12,447) | (10,442) | (9,715) |
| Ending Balance | 74,444 | 69,290 | 66,015 |
| Wireless | |||
| Goodwill [Roll Forward] | |||
| Goodwill beginning balance | 164,312 | 164,312 | |
| Goodwill ending balance | 164,312 | 164,312 | 164,312 |
| Wireline | |||
| Goodwill [Roll Forward] | |||
| Goodwill beginning balance | 74,951 | 65,248 | |
| Goodwill acquired during period | 9,703 | ||
| Goodwill ending balance | $ 74,951 | $ 74,951 | $ 65,248 |
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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