Earnings Attributable to GCI Liberty Stockholders Per Common Share (Tables) |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2018 | |||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||
| Schedule of Weighted Average Number of Shares |
|
||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|