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Revenues - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Revenue Recognition [Abstract]      
Fees to GPOs $ 4,500 $ 3,400  
Short-term deferred revenues, net 127,998   $ 112,196
Deferred cost of sales 20,300   22,400
Deferred revenues recognized 66,600    
Short-term deferred revenues, gross     134,600
Long-term deferred revenues $ 24,037   $ 20,194
Remaining performance obligation, recognition period 10 years