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INVESTMENTS - Narrative (Details) € in Millions				3 Months Ended		9 Months Ended
	Nov. 08, 2023 USD ($)	Nov. 08, 2023 EUR (€)	Oct. 06, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Oct. 05, 2023	Dec. 31, 2022 USD ($)
Schedule of Equity Method Investments [Line Items]
Available-for-sale securities and fair value option investments				$ 0		$ 0			$ 0
Non-cash remeasurement of investment				25,847,000	$ 0	25,847,000	$ 0
SumUp
Schedule of Equity Method Investments [Line Items]
Equity method investments				93,700,000		93,700,000			$ 119,500,000
Non-cash remeasurement of investment				$ 25,800,000		$ 25,800,000
SumUp | Subsequent Event
Schedule of Equity Method Investments [Line Items]
Percentage of other equity investment sold	11.70%	11.70%	9.40%
Proceed from sale of equity method investments	$ 10,000,000	€ 9.4	$ 8,800,000
Equity method investment, ownership percentage			2.08%					2.29%

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