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Summary of Significant Accounting Policies - Additional Information (Details) |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 11, 2021 USD ($) | Jun. 29, 2020 USD ($) | Sep. 30, 2021 USD ($) customer | Sep. 30, 2020 USD ($) customer | Sep. 30, 2021 USD ($) customer | Sep. 30, 2020 USD ($) customer | Dec. 31, 2020 USD ($)
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Maturity Period Of Highly Liquid Investments |  |  |  |  | 90 days |  |
Allowance for doubtful accounts receivable |  |  | $ 1,200,000 |  | $ 1,200,000 |  | $ 1,100,000
Revenues |  |  | 56,693,000 | $ 11,172,000 | 166,168,000 | $ 30,335,000 |
Impairment of intangible assets |  |  | 0 |  | 0 |  |
Material unrecognized Tax Benefits |  |  | 0 |  | $ 0 |  |
Operating Loss Carryforwards, Percent |  |  |  |  | 80.00% |  |
Period over which foreign subsidiaries subject to examination by indian tax authorities |  |  |  |  | 3 years |  |
Amount of maximum allowed research and development credit usage |  | $ 5,000,000 |  |  |  |  |
Charity Care, Reimbursements Received | $ 1,000,000 |  |  |  |  |  |
Omit disclosure of the transaction price allocated to remaining performance obligations |  |  |  |  | true |  |
Contract liabilities |  |  | 300,000 |  | $ 300,000 |  | $ 300,000
Contract with Customer, Liability, Revenue Recognized |  |  |  |  | $ 300,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  |  | 4 years |  |
Foreign Currency Transaction Gain (Loss), before Tax |  |  |  |  | $ (3,600,000) | 0 |
Minimum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  |  | 7 years |  |
Maximum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  |  | 10 years |  |
Furniture and Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 3 years |  |
Furniture and Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 15 years |  |
Building [Member] | Minimum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 20 years |  |
Building [Member] | Maximum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 45 years |  |
Computer Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 3 years |  |
Computer Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 12 years |  |
Freezer (Member) | Minimum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 7 years |  |
Freezer (Member) | Maximum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 10 years |  |
Truck and Auto (Member) | Minimum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 4 years |  |
Truck and Auto (Member) | Maximum [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 10 years |  |
Foreign Customers [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Revenues |  |  | $ 26,400,000 | $ 2,400,000 | $ 79,000,000.0 | $ 6,500,000 |
Accounts Receivable [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Percentage of net accounts receivable |  |  |  |  | 10.00% |  | 10.00%
Sales Revenue, Net [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Number Of Customers | customer |  |  | 0 | 1 | 0 | 3 |
Percentage of net accounts receivable |  |  | 10.00% | 10.00% | 10.00% | 10.00% |
Sales Revenue, Net [Member] | Customer One [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Number Of Customers | customer |  |  |  |  | 0 |  |
Concentration risk, percentage |  |  | 10.00% |  | 10.00% | 16.00% |
Sales Revenue, Net [Member] | Customer Two [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  |  | 14.00% |
Sales Revenue, Net [Member] | Foreign Customers [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Concentration risk, percentage |  |  | 46.50% | 21.70% | 47.50% | 21.40% |
Sales Revenue, Net [Member] | Customer Three [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |
Significant Accounting Policies Additional Information [Line Items] |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  | 14.90% |  | 10.60% |

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