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Summary of Significant Accounting Policies - Equity Method Investment (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 23, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Jun. 30, 2019
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Loss on equity method investment |  |  |  | $ 750 | $ 2,737 |  |
Notes receivable issued to joint venture |  |  |  |  |  | $ 6,800 |
Notes receivable, net |  | $ 0 |  | 0 |  | 4,825 |
WorkLLama | WorkLLama |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Noncontrolling interest | 50.00% |  |  |  |  |  |
WorkLLama |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Percent ownership of equity method investment |  |  |  |  |  |  | 50.00%
Loss on equity method investment |  | $ 0 | $ 900 | $ 800 | $ 2,700 |  |
Proceeds from sale of equity method investments | $ 6,000 |  |  |  |  |  |
Proceeds from sale of equity method investments, net of transaction costs | $ 5,100 |  |  |  |  |  |
WorkLLama | Notes Receivable |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Reserve related to note receivable |  |  |  |  |  | $ 1,900 |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 + Details
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