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Significant Risks and Uncertainties - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) Channels facility	Mar. 31, 2020 USD ($)
Significant Risks And Uncertainties [Line Items]
Incurred loss | $	$ 5.4	$ 8.0
Sales Channel, Directly to Consumer [Member] | Net Sales
Significant Risks And Uncertainties [Line Items]
Number of channels | Channels	2
Percentage of net sales	81.30%	93.90%
Channel One [Member] | VA/DoD facilities | Net Sales
Significant Risks And Uncertainties [Line Items]
Number of channels	5
Percentage of net sales	55.20%
Channel Two [Member] | VA/DoD facilities | Net Sales
Significant Risks And Uncertainties [Line Items]
Number of channels	2
Channel Two [Member] | VA/DoD facilities | Minimum | Net Sales
Significant Risks And Uncertainties [Line Items]
Percentage of net sales	10.00%

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The total number of sales channels by reporting entity.

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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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