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Revenue Recognition - Receivables and deferred revenue from contracts with customers (Details) - BFLY Operations Inc - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts receivable, net | $ 5,752 | $ 1,951
Deferred revenue, current | 8,443 | 3,200
Deferred revenue, non-current | $ 2,790 | $ 587

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