Goodwill and Intangible Assets (Rollforward) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Goodwill [Roll Forward] | ||
| Balance at beginning of period | $ 855,837 | $ 25,569 |
| Acquisitions | 966,044 | |
| Impairment | 0 | (135,776) |
| Balance at end of period | 855,837 | 855,837 |
| GCI Holdings | ||
| Goodwill [Roll Forward] | ||
| Balance at beginning of period | 830,268 | 0 |
| Acquisitions | 966,044 | |
| Impairment | 0 | (135,776) |
| Balance at end of period | 830,268 | 830,268 |
| Corporate and other | ||
| Goodwill [Roll Forward] | ||
| Balance at beginning of period | 25,569 | 25,569 |
| Acquisitions | 0 | |
| Impairment | 0 | 0 |
| Balance at end of period | $ 25,569 | $ 25,569 |
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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