INVESTMENTS IN LOANS AND SECURITIES - Investments by Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Amortized Cost
Within 1 year	$ 11,311	$ 2,508
Greater than 1 year, less than or equal to 5 years	1,245,400	809,366
Total	1,256,711	811,874
Fair Value
Within 1 year	11,251	2,490
Greater than 1 year, less than or equal to 5 years	912,131	714,303
Total	923,382	716,793
Securitization notes
Amortized Cost
Within 1 year	10,549	2,405
Greater than 1 year, less than or equal to 5 years	267,827	89,249
Total	278,376	91,654
Fair Value
Within 1 year	10,489	2,387
Greater than 1 year, less than or equal to 5 years	267,726	88,038
Total	278,215	90,425
Securitization certificates
Amortized Cost
Within 1 year	762	103
Greater than 1 year, less than or equal to 5 years	970,708	715,543
Total	971,470	715,646
Fair Value
Within 1 year	762	103
Greater than 1 year, less than or equal to 5 years	639,349	623,970
Total	640,111	624,073
Other loans and receivables
Amortized Cost
Within 1 year	0	0
Greater than 1 year, less than or equal to 5 years	6,865	4,574
Total	6,865	4,574
Fair Value
Within 1 year	0	0
Greater than 1 year, less than or equal to 5 years	5,056	2,295
Total	$ 5,056	$ 2,295

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
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-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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