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CONTINGENCIES - Narrative (Details) |  |  |  | 1 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 13, 2019 plaintiff | Aug. 31, 2018 plaintiff | Aug. 14, 2018 USD ($) plaintiff | Nov. 30, 2018 USD ($) | Jun. 30, 2020 USD ($) lawsuit
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency reserve |  |  |  |  | $ 0
Number of lawsuits with possible material impact (one or more) | lawsuit |  |  |  |  | 1
Tinder Optionholder Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of plaintiffs | plaintiff | 6 | 6 | 10 |  |
Number of plaintiffs that were granted motion to dismiss merger-related claim for breach of contract | plaintiff | 2 |  |  |  |
Tinder Optionholder Litigation | Pending Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Damages sought |  |  | $ 2,000,000,000 |  |
FTC Investigation of Business Practices | Pending Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Damages sought |  |  |  | $ 60,000,000 |

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