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Common Stock (Tables) | 6 Months Ended
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Jun. 30, 2021
Common Stock [Abstract] |
Class of Treasury Stock | The following represents the Company's purchase of Charter Class A common stock and the effect on the consolidated statements of cash flows during the three and six months ended June 30, 2021 and 2020.
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
| Shares |  | $ |  | Shares |  | $ |  | Shares |  | $ |  | Shares |  | $
Share buybacks | 5,147,257 |  |  | $ | 3,392 |  |  | 2,028,234 |  |  | $ | 1,026 |  |  | 10,703,575 |  |  | $ | 6,866 |  |  | 6,480,783 |  |  | $ | 3,202 |
Income tax withholding | 183,357 |  |  | 124 |  |  | 247,651 |  |  | 129 |  |  | 467,920 |  |  | 302 |  |  | 583,305 |  |  | 305 |
Exercise cost | 185,698 |  |  |  |  | 188,923 |  |  |  |  | 495,513 |  |  |  |  | 430,675 |  |  |
| 5,516,312 |  |  | $ | 3,516 |  |  | 2,464,808 |  |  | $ | 1,155 |  |  | 11,667,008 |  |  | $ | 7,168 |  |  | 7,494,763 |  |  | $ | 3,507 |
Share buybacks above include shares of Charter Class A common stock purchased from Liberty Broadband Corporation (“Liberty Broadband”) pursuant to the LBB Letter Agreement as follows (see Note 19).
| Three Months Ended June 30, 2021 |  | Six Months Ended June 30, 2021
Number of shares purchased | 1,927,032 |  |  | 2,761,608 |
Amount of shares purchased | $ | 1,244 |  |  | $ | 1,762 |

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 + Details
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