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EARNINGS PER SHARE AND REDEEMABLE NONCONTROLLING INTERESTS - Narrative (Details) - USD ($) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Jul. 22, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Reconciliation from basic to diluted weighted average common shares outstanding |  |  |  |
Redeemable noncontrolling interests |  | $ 74,052 |  | $ 72,936
Redeemable Common Units |  |  |  |
Reconciliation from basic to diluted weighted average common shares outstanding |  |  |  |
Redeemable noncontrolling interests |  | 22,640 |  | 22,640
Allocated losses |  | 1,100 |  |
Increased book value |  | 1,100 |  |
Redeemable Preferred Units |  |  |  |
Reconciliation from basic to diluted weighted average common shares outstanding |  |  |  |
Redeemable noncontrolling interests |  | 51,412 |  | $ 50,296
Unpaid dividend |  | 3,100 |  |
Alaska communications | Redeemable Common Units |  |  |  |
Reconciliation from basic to diluted weighted average common shares outstanding |  |  |  |
Redeemable noncontrolling interests | $ 22,600 | 22,600 |  |
Fair value of common units |  | 22,600 |  |
Alaska communications | Redeemable Preferred Units |  |  |  |
Reconciliation from basic to diluted weighted average common shares outstanding |  |  |  |
Redeemable noncontrolling interests | $ 48,300 | 48,300 |  |
Fair value of common units |  | $ 51,400 |  |
Percentage of preferred dividend | 9.00% | 9.00% |  |
Stock options |  |  |  |
Reconciliation from basic to diluted weighted average common shares outstanding |  |  |  |
Stock options (in shares) |  | 5,000 | 5,000 |

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