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v3.21.1

Revenue Recognition - Accounts Receivable and Deferred Revenue (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Assets |  |
Accounts receivable | $ 87,562 | $ 78,565
Liabilities: |  |
Deferred revenue, current portion | 9,069 | 50,125
Deferred revenue, long-term portion | 23,816 | 22,805
Total deferred revenues | $ 32,885 | $ 72,930

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