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FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Assets and Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets: |  |
Cash | $ 998,986 | $ 1,017,562
Restricted cash | 35,315 | 35,303
Marketable securities | 38,646 | 46,923
Trade receivables | 80,673 | 72,634
Derivative asset | 1,351 | 987
Deferred consideration | 23,261 | 22,610
Total assets | 1,178,232 | 1,196,019
Level 1 |  |
Assets: |  |
Cash | 998,986 | 1,017,562
Restricted cash | 35,315 | 35,303
Marketable securities | 38,646 | 46,923
Trade receivables | 0 | 0
Derivative asset | 0 | 0
Deferred consideration | 0 | 0
Total assets | 1,072,947 | 1,099,788
Level 2 |  |
Assets: |  |
Cash | 0 | 0
Restricted cash | 0 | 0
Marketable securities | 0 | 0
Trade receivables | 80,673 | 72,634
Derivative asset | 1,351 | 987
Deferred consideration | 0 | 0
Total assets | 82,024 | 73,621
Level 3 |  |
Assets: |  |
Cash | 0 | 0
Restricted cash | 0 | 0
Marketable securities | 0 | 0
Trade receivables | 0 | 0
Derivative asset | 0 | 0
Deferred consideration | 23,261 | 22,610
Total assets | $ 23,261 | $ 22,610

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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 No definition available. + Details
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