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Borrowings - Mann Group Promissory Notes - Additional Information (Detail) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Aug. 31, 2019 USD ($) $ / shares | Sep. 30, 2022 USD ($) shares | Jun. 30, 2022 USD ($) shares | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) shares | Sep. 30, 2021 USD ($) shares | Dec. 31, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  | $ 278,800 |  |  | $ 278,800 |  |
Maturity date |  | Dec. 31, 2025 |  | Nov. 03, 2024 |  |  |  |  |  |
Gain (loss) on extinguishment of debt, net |  |  |  |  |  |  | $ 4,930 |  | $ (17,200) |
Debt issuance amount |  |  | $ 230,000 |  |  |  |  |  |  |
Interest paid |  |  |  |  | 2,812 |  | $ 2,803 | 12,202 | 12,435 |
Mann Group | Convertible Promissory Note |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  | $ 8,800 |  |  | $ 8,800 |  | $ 18,400
Debt instrument, interest rate, stated percentage | [1] |  |  |  | 2.50% |  |  | 2.50% |  |
Repayments of debt |  | $ 35,100 |  |  |  |  |  |  |  |
Debt issuance amount |  |  |  |  |  | $ 10,000 |  | $ 10,000 | $ 9,600 |
Capitalized interest into common stock | shares |  |  |  |  |  | 4,000,000 |  | 4,000,000 | 4,000,000 |
Common stock issued to pay interest | shares |  |  |  |  | 25,950 | 31,541 |  | 57,491 |  |
Interest paid |  |  |  |  |  |  |  | $ 200 |  |
Conversion of notes accrued interest to common shares, value |  |  |  |  |  |  |  |  | $ 400 |
Mann Group | Promissory Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument fair value in excess of face amount |  |  |  |  |  |  |  |  |  | 18,400
Gain (loss) on extinguishment of debt, net |  |  |  |  |  |  |  |  |  | (22,100)
Debt premium recognized in additional paid-in capital |  |  |  |  |  |  |  |  |  | $ 22,100
Mann Group | New Loan Arrangement | Convertible Promissory Note |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
No of convertible shares |  |  |  | 400 |  |  |  |  |  |
Principal amount per share | $ / shares |  |  |  | $ 1,000 |  |  |  |  |  |
Conversion price of shares | $ / shares |  |  |  | $ 2.50 |  |  |  |  |  |
Mann Group | New Loan Arrangement | Promissory Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  | 2.50% |  | 7.00% |  |  |  |  |  |
Debt instrument payment term description |  |  |  | quarterly |  |  |  |  |  |
Debt instrument, date of first required interest payment |  |  |  | Oct. 01, 2019 |  |  |  |  |  |
Mann Group | Privately Negotiated Exchange Agreement | Loan Arrangement |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock price per share | $ / shares |  |  |  | $ 2.50 |  |  |  |  |  |
Mann Group | Privately Negotiated Exchange Agreement | Loan Arrangement | Convertible Promissory Note |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 35,000 |  |  |  |  |  |
Mann Group | Privately Negotiated Exchange Agreement | Loan Arrangement | Non-Convertible Note |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 35,100 |  |  |  |  |  |
[1] | In April 2021, the Mann Group convertible note was amended. The interest rate prior to and after the amendment was 7.00% and the maturity date was in November 2024.

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