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Contingent Consideration Payable - Payable Balance (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Business Combination, Changes in Related Party Payable [Roll Forward] |  |  |
Related party payable, beginning balance | $ 17,327 | $ 28,840 | $ 98,925
Payments | (6,189) | (12,736) | (22,951)
Fair value adjustments | 3,762 | 1,223 | (24,630)
Expiration of warrants |  |  | (2,167)
Disposition of the pediatrics assets |  |  | (20,337)
Disposition of the Hospital Products | (14,900) |  |
Related party payable, ending balance | $ 0 | $ 17,327 | $ 28,840

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