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Leases - Additional Information (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Mar. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2020
Lessee Lease Description [Line Items] |  |  |  |
Impairment loss related to operating lease right-of-use assets |  | $ 2.6 |  |
One time fees asset non-current | $ 10.0 |  |  |
Remaining payable recorded as other current liabilities |  |  | $ 2.0 | $ 4.0
Construction-in-Progress |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |
New accounting pronouncement effect of adoption |  |  | $ 10.0 |
Manufacturing Agreement |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |
Lease agreement expiration | 5 years |  |  |
Property and Equipment |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |
Impairment loss |  | 0.7 |  |
Selling, General and Administrative Expenses |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |
Impairment loss |  | $ 3.3 |  |

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
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