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CUSTOMER LOANS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Consumer receivables, net	$ 2,670,322	$ 2,504,879
Amortized cost basis	3,765,818
Gain on sale of financing receivable	255,800	236,800	$ 196,100
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Consumer receivables, net		365,100
Loans held for investment, net of allowance		23,100
Amortized cost basis	$ 481,757
Loan Portfolio Segment, Held For Investment
Financing Receivable, Credit Quality Indicator [Line Items]
Threshold period past due (in days)	60 days
Loan Portfolio Segment, Held For Investment \| Unlikely to be Collected Financing Receivable
Financing Receivable, Credit Quality Indicator [Line Items]
Threshold period past due (in days)	120 days
Loan Portfolio Segment, Held For Investment \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Consumer receivables	$ 3,400,000	385,200
Loan Portfolio Segment, Held For Investment \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Consumer receivables	$ 381,000
Amortized cost basis		0
Loan Portfolio Segment, Held For Investment \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Threshold period past due (in days)	90 days
Loan Portfolio Segment, Held For Sale
Financing Receivable, Credit Quality Indicator [Line Items]
Proceeds from sale of finance receivables	$ 4,500,000	4,200,000
Gain on sale of financing receivable	$ 255,800	$ 236,800
Loan Portfolio Segment, Held For Sale \| Unlikely to be Collected Financing Receivable \| Cash Borrow Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Threshold period past due (in days)	90 days
Loan Portfolio Segment, Held For Sale \| Unlikely to be Collected Financing Receivable \| Square Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Threshold period past due (in days)	120 days