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Summary of Significant Accounting Policies - Percentage of Net Product Sales and Accounts Receivable Balance (Details) - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2020
Revenue Benchmark
Product Information [Line Items]
Concentration risk percentage	98.30%
Revenue Benchmark | Largest Customer
Product Information [Line Items]
Concentration risk percentage	44.00%
Revenue Benchmark | Second Largest Customer
Product Information [Line Items]
Concentration risk percentage	33.50%
Revenue Benchmark | Third Largest Customer
Product Information [Line Items]
Concentration risk percentage	20.80%
Accounts Receivable
Product Information [Line Items]
Concentration risk percentage	99.60%
Accounts Receivable | Largest Customer
Product Information [Line Items]
Concentration risk percentage	61.30%
Accounts Receivable | Second Largest Customer
Product Information [Line Items]
Concentration risk percentage	29.80%
Accounts Receivable | Third Largest Customer
Product Information [Line Items]
Concentration risk percentage	8.50%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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-Publisher FASB
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+ References

No definition available.

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