FAIR VALUE MEASUREMENT - Schedule of Assets Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets
Cash, cash equivalents and restricted cash	$ 310,049	$ 222,541
Fees and other receivables	122,600	113,707
Total assets	432,649	336,248
Carrying Value
Assets
Cash, cash equivalents and restricted cash	310,049	222,541
Fees and other receivables	122,600	113,707
Total assets	432,649	336,248
Fair Value \| Level 1
Assets
Cash, cash equivalents and restricted cash	310,049	222,541
Fees and other receivables	0	0
Total assets	310,049	222,541
Fair Value \| Level 2
Assets
Cash, cash equivalents and restricted cash	0	0
Fees and other receivables	122,600	113,707
Total assets	122,600	113,707
Fair Value \| Level 3
Assets
Cash, cash equivalents and restricted cash	0	0
Fees and other receivables	0	0
Total assets	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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- Definition

Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-10

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

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