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Accounting Policies - Percentage of Net Product Sales and Accounts Receivable Balance (Details) - Customer Concentration Risk | 3 Months Ended
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Mar. 31, 2022
Revenue Benchmark | Largest Customer |
Product Information [Line Items] |
Concentration risk percentage | 45.10%
Revenue Benchmark | Second Largest Customer |
Product Information [Line Items] |
Concentration risk percentage | 35.40%
Revenue Benchmark | Third Largest Customer |
Product Information [Line Items] |
Concentration risk percentage | 18.30%
Revenue Benchmark | Total Customer |
Product Information [Line Items] |
Concentration risk percentage | 98.80%
Accounts Receivable | Largest Customer |
Product Information [Line Items] |
Concentration risk percentage | 55.40%
Accounts Receivable | Second Largest Customer |
Product Information [Line Items] |
Concentration risk percentage | 28.70%
Accounts Receivable | Third Largest Customer |
Product Information [Line Items] |
Concentration risk percentage | 14.80%
Accounts Receivable | Total Customer |
Product Information [Line Items] |
Concentration risk percentage | 98.90%

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