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Revenue Recognition - Narrative (Details)
3 Months Ended
Mar. 31, 2021
segment
productCategory
Disaggregation of Revenue [Line Items]  
Refund period 90 days
Number of principal categories of products | productCategory 6
Number of business segments | segment 4
Maximum  
Disaggregation of Revenue [Line Items]  
Contract with customer, contract term 1 year