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ACCOUNTING POLICIES (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
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Contract Balances |  |
Accounts receivable | $ 31.4 | $ 9.1
Unbilled fee revenue | 8.7 | 2.2
Unearned revenue | $ 2.4 | $ 31.6

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