SEGMENT AND GEOGRAPHICAL INFORMATION - Reconciliation of Total Segment Profit to Loss before applicable Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting [Abstract]
Total segment gross profit	$ 1,866,101,000	$ 1,469,648,000	$ 3,580,685,000	$ 2,764,608,000
Less: Product development	694,672,000	524,827,000	1,321,609,000	983,051,000
Less: Sales and marketing	537,607,000	530,827,000	1,033,618,000	1,032,389,000
Less: General and administrative	549,293,000	395,720,000	982,118,000	839,869,000
Less: Transaction, loan, and consumer receivable losses	179,771,000	156,697,000	307,667,000	247,847,000
Less: Bitcoin impairment losses	0	35,961,000	0	35,961,000
Less: Amortization of customer and other intangible assets	36,865,000	39,389,000	73,952,000	66,053,000
Less: Interest expense (income), net	(3,944,000)	12,966,000	(7,105,000)	28,714,000
Less: Other expense (income), net	1,379,000	(18,766,000)	19,750,000	(52,238,000)
Loss before income tax	$ (129,542,000)	$ (207,973,000)	$ (150,924,000)	$ (417,038,000)