ACQUISITIONS AND DIVESTITURES - Schedule of Assets Acquired and Liabilities Assumed - Heights (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended	21 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Sep. 30, 2023	Dec. 27, 2021
Liabilities
Goodwill	$ 276,269	$ 276,269	$ 276,269
Heights SPV
Assets
Cash and cash equivalents			13,564	$ 13,564
Restricted cash			33,630	33,630
Gross loans receivable			456,251	471,630
Gross loans receivable, measurement period adjustments			(15,379)
Income tax receivable			7,735	3,526
Income tax receivable, measurement period adjustments	4,200		4,209
Prepaid expenses and other			7,410	7,410
Property and equipment			4,748	4,748
Right-of-use assets			16,111	16,111
Intangibles, net			11,900	11,900
Deferred tax asset			2,477	0
Deferred tax asset, measurement period adjustment			2,477
Other assets			98	98
Total assets			553,924	562,617
Total assets			(8,693)
Liabilities
Accounts payable and accrued liabilities			23,395	19,186
Accounts payable and accrued liabilities, measurement period adjustments	4,200		4,209
Lease liabilities			16,315	16,315
Deferred tax liability			0	1,077
Deferred tax liability, measurement period adjustments			(1,077)
Accrued interest on debt			1,781	1,781
Debt			350,000	350,000
Total liabilities			391,491	388,359
Total liabilities			3,132
Net assets acquired			162,433	174,258
Net assets acquired, purchase accounting adjustments	(3,500)	11,800	(11,825)
Total consideration paid			428,115	428,115
Goodwill	$ 265,700	$ 265,700	$ 265,682	253,857
Gross contractual loans receivable				485,400
Estimate of gross contractual loans that will not be collected				$ 29,100