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INVESTMENTS - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2023 | Dec. 31, 2021 | Dec. 30, 2023 | Sep. 30, 2023 | Dec. 31, 2022
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Percentage of other equity investment sold |  |  | 100.00% |  |  |  |  |  |
Proceeds from sale of equity method investments |  |  | $ 2.6 | $ 4.2 |  |  |  |  |
Unrealized gain on investments |  |  |  |  |  | $ 6.4 |  |  |
Gain on sale of equity investments |  |  | $ 2.2 |  |  |  |  |  |
Available-for-sale securities | $ 0.0 |  |  |  | $ 0.0 |  |  |  | $ 0.0
Fair value of transferred investment |  | $ 0.0 |  |  |  |  |  |  |
SumUp Holdings |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage | 1.79% |  |  |  | 1.79% |  |  | 2.29% |
Decrease in the value of equity securities |  |  |  |  | $ 25.8 |  |  |  |
Percentage of other equity investment sold | 9.40% |  |  |  |  |  |  |  |
Proceeds from sale of equity method investments | $ 8.8 |  |  |  |  |  |  |  |
Unrealized gain on investments |  |  |  |  |  | $ 89.1 |  |  |
SumUp Holdings | Sale of Equity Method Investment, One |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  | 2.08% |  |
SumUp Holdings | Sale of Equity Method Investment, Two |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Percentage of other equity investment sold | 11.70% |  |  |  |  |  |  |  |
Proceeds from sale of equity method investments | $ 10.2 |  |  |  |  |  |  |  |
Monster LP |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity method investments, fair value | 0.0 |  |  |  | 0.0 |  |  |  | 0.0
Nearbuy |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity method investments, fair value | $ 0.0 |  |  |  | $ 0.0 |  |  |  | $ 0.0

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