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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) segment	Sep. 30, 2024 USD ($)	Dec. 31, 2024
Concentration Risk [Line Items]
Number of reportable segments | segment			2
Advertising costs	$ 137.4	$ 81.9	$ 347.0	$ 221.8
Selling and marketing expenses not directly related to a revenue generating transaction	$ 232.2	$ 234.4	$ 647.2	$ 697.9
Minimum
Concentration Risk [Line Items]
Settlements receivable period (in days)			1 day
Maximum
Concentration Risk [Line Items]
Settlements receivable period (in days)			2 days
Third Party Processor One | Settlements Receivable | Credit Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as percent)			41.00%		42.00%
Third Party Processor Two | Settlements Receivable | Credit Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as percent)			14.00%		17.00%
Third Party Processor Three | Settlements Receivable | Credit Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as percent)			15.00%		13.00%
Third Party Processor Four | Settlements Receivable | Credit Concentration Risk
Concentration Risk [Line Items]
Concentration risk (as percent)			11.00%

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