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v3.21.2

Revenue (Adjustments to Revenue) (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
U.S. | Sales returns, rebates, and discounts |  |  |  |
Change in Accounting Estimate [Line Items] |  |  |  |
Revenue, information used to determine revenue recognized, change in accounting estimate, percent (less than - 2021) | 1.00% | (1.00%) | 1.00% | 1.00%

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- Details
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