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Leases - Narrative (Details) - USD ($) $ in Thousands |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 29, 2024 | Jan. 26, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Sublease income |  |  | $ 200 |  | $ 500 |  |
Lease expiration date |  |  |  |  | Oct. 30, 2027 |  |
Cash payments for operating lease expense |  |  | $ 400 | $ 400 | $ 1,200 | $ 1,200 |
Weighted average remaining lease term for operating leases |  |  | 4 years 9 months 25 days |  | 4 years 9 months 25 days |  |
Weighted average discount rate |  |  | 7.78% |  | 7.78% |  |
Operating lease right-of-use assets |  |  | $ 3,923 |  | $ 3,923 |  | $ 4,453
Operating lease liability |  |  | $ 7,066 |  | $ 7,066 |  |
Discount rate, right-of-use asset and lease liability |  |  | 9.60% |  | 9.60% |  |
Gain on settlement of lease liability |  |  |  |  |  | 445 |
1333 Broadway Lease |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Annual fixed rent amount |  |  |  |  | $ 1,300 |  |
Annual fixed sublease rent amount |  | $ 800 |  |  |  |  |
Weighted average remaining lease term for operating leases |  |  | 3 years 29 days |  | 3 years 29 days |  |
1333 Broadway Lease | Right-of-use assets |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Impairment charges related to lease |  |  |  |  | $ 3,100 |  |
1333 Broadway Lease | Leasehold improvements |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Impairment charges related to lease |  |  |  |  | $ 400 |  |
550 Seventh Avenue Lease |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Annual fixed rent amount | $ 500 |  |  |  |  |  |
Weighted average remaining lease term for operating leases |  |  | 7 years 6 months 29 days |  | 7 years 6 months 29 days |  |
Operating lease right-of-use assets |  |  | $ 2,600 |  | $ 2,600 |  |
Operating lease liability |  |  | 2,600 |  | 2,600 |  |
Selling, general and administrative expenses |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Operating lease expense |  |  | $ 300 | $ 400 | $ 700 | $ 1,200 |

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- Definition The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482130/360-10-45-4 + Details
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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