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Long-term Debt - Additional Information (Detail) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 24, 2023 USD ($) | Mar. 23, 2022 USD ($) | Jun. 14, 2021 USD ($) | Jun. 30, 2022 USD ($) | Feb. 28, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2023 USD ($) Bitcoin shares | Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) Bitcoin shares | Sep. 30, 2023 USD ($) Bitcoin shares | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment to extinguishment of debt |  |  |  |  |  |  |  |  |  |  | $ 160,033,000 | $ 0 |
Gain on extinguishment of debt |  |  |  |  |  |  | $ 0 |  | $ 0 |  | 44,686,000 | 0 |
Current portion of long-term debt, net |  |  |  |  |  |  | $ 475,000 |  |  | $ 475,000 | $ 475,000 |  | $ 454,000
Senior Secured Notes Due Twenty Twenty Eight |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |
Interest rate, fixed percentage |  |  | 6.125% |  |  |  |  |  |  |  |  |  |
Periodic payment description |  |  | The 2028 Secured Notes bear interest at a fixed rate of 6.125% per annum, payable semiannually in arrears on June 15 and December 15 of each year, beginning on December 15, 2021. |  |  |  |  |  |  |  |  |  |
Payment start date |  |  | Dec. 15, 2021 |  |  |  |  |  |  |  |  |  |
Debt instrument, maturity date |  |  | Jun. 15, 2028 |  |  |  |  |  |  |  |  |  |
Debt instrument, first springing maturity date |  |  | Sep. 15, 2025 |  |  |  |  |  |  |  |  |  |
Debt instrument, second springing maturity date |  |  | Nov. 16, 2026 |  |  |  |  |  |  |  |  |  |
Convertible Senior Notes due 2025 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 650,000,000 |  |  |  |  |  |  |
Interest rate, fixed percentage |  |  |  |  |  | 0.75% |  |  |  |  |  |  |
Periodic payment description |  |  |  |  |  | The 2025 Convertible Notes are senior unsecured obligations of the Company and bear interest at a fixed rate of 0.750% per annum, payable semiannually in arrears on June 15 and December 15 of each year, beginning on June 15, 2021. |  |  |  |  |  |  |
Payment start date |  |  |  |  |  | Jun. 15, 2021 |  |  |  |  |  |  |
Debt instrument, maturity date |  |  |  |  |  | Dec. 15, 2025 |  |  |  |  |  |  |
Number of shares convertible from notes | shares |  |  |  |  |  |  | 1,633,190 |  |  | 1,633,190 | 1,633,190 |  |
Total Interest Paid |  |  |  |  |  |  | $ 0 |  | 0 |  | $ 2,400,000 | 2,400,000 |
Additional interest paid |  |  |  |  |  |  | $ 0 |  |  |  | $ 0 |  |
Convertible Senior Notes due 2027 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 1,050,000,000.00 |  |  |  |  |  |  |  |
Interest rate, fixed percentage |  |  |  |  | 0.00% |  |  |  |  |  |  |  |
Periodic payment description |  |  |  |  | The 2027 Convertible Notes are senior unsecured obligations of the Company and do not bear regular interest. However, holders of the 2027 Convertible Notes may receive special interest under specified circumstances as outlined in the indenture relating to the issuance of the 2027 Convertible Notes. Any special interest is payable semiannually in arrears on February 15 and August 15 of each year, beginning on August 15, 2021 |  |  |  |  |  |  |  |
Payment start date |  |  |  |  | Aug. 15, 2021 |  |  |  |  |  |  |  |
Debt instrument, maturity date |  |  |  |  | Feb. 15, 2027 |  |  |  |  |  |  |  |
Number of shares convertible from notes | shares |  |  |  |  |  |  | 733,005 |  |  | 733,005 | 733,005 |  |
Convertible Senior Notes due 2027 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total Interest Paid |  |  |  |  |  |  | $ 0 |  |  |  | $ 0 |  |
Secured Notes Due Twenty Twenty Eight |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate, fixed percentage |  |  |  |  |  |  | 6.125% |  |  | 6.125% | 6.125% |  |
Total Interest Paid |  |  |  |  |  |  | $ 0 |  | 0 |  | $ 15,300,000 | 15,300,000 |
Interest expense |  |  |  |  |  |  | $ 7,657,000 |  | 7,657,000 |  | $ 22,969,000 | 22,969,000 |
Debt instrument, first springing maturity date |  |  | Sep. 15, 2025 |  |  |  |  |  |  |  |  |  |
Debt instrument, second springing maturity date |  |  | Nov. 16, 2026 |  |  |  |  |  |  |  |  |  |
Unencumbered existing digital assets | Bitcoin |  |  |  |  |  |  | 92,079 |  |  | 92,079 | 92,079 |  |
Secured Notes Due Twenty Twenty Eight | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Springing maturity condition FCCR liquidity percentage |  |  | 130.00% |  |  |  |  |  |  |  |  |  |
Springing maturity condition 1 liquidity percentage |  |  | 130.00% |  |  |  |  |  |  |  |  |  |
Springing maturity condition 2 liquidity percentage |  |  | 130.00% |  |  |  |  |  |  |  |  |  |
Secured Notes Due Twenty Twenty Eight | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Springing maturity condition FCCR - aggregate principal of FCCR convertible notes outstanding |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |
Springing maturity condition 1- aggregate principal of 2025 convertible notes outstanding |  |  | 100,000,000 |  |  |  |  |  |  |  |  |  |
Springing maturity condition 2- aggregate principal of 2027 convertible notes outstanding |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |
Secured Term Loan Due Twenty Twenty Five |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 205,000,000 | $ 205,000,000 |  |  |  |  |  |  |  |  |  |  |
Total Interest Paid |  |  |  |  |  |  |  | $ 5,100,000 | 2,700,000 |  |  | 4,300,000 |
Interest expense |  |  |  |  |  |  |  |  | $ 2,931,000 | $ 0 | $ 3,781,000 | $ 5,314,000 |
Interest paid included in Payoff Amount | 1,100,000 |  |  |  |  |  |  | 1,100,000 |  |  |  |  |
Prepayment of Debt | 161,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Payment to extinguishment of debt | 159,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of third party fees | 100,000 |  |  |  |  |  |  |  |  |  |  |  |
Repayment of debt | 204,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Gain on extinguishment of debt |  |  |  |  |  |  |  | $ 44,700,000 |  |  |  |  |
LTV Percentage Maximum |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%
Number of bitcoins remained unencumbered | Bitcoin |  |  |  |  |  |  | 82,991 |  |  | 82,991 | 82,991 |  |
Secured Term Loan Due Twenty Twenty Five | Collateral Pledged |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash reserve |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |
Reserve Fund Against Payoff Amount | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Other Long-Term Secured Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding Principal Balance |  |  |  |  |  |  | $ 10,500,000 |  |  | $ 10,500,000 | $ 10,500,000 |  |
Debt Instrument, Face Amount |  |  |  | $ 11,100,000 |  |  |  |  |  |  |  |  |
Interest rate, fixed percentage |  |  |  | 5.20% |  |  |  |  |  |  |  |  |
Debt instrument, maturity year month |  |  |  | 2027-06 |  |  |  |  |  |  |  |  |
Net carrying value |  |  |  |  |  |  | 10,300,000 |  |  | 10,300,000 | 10,300,000 |  |
Current portion of long-term debt, net |  |  |  |  |  |  | $ 500,000 |  |  | $ 500,000 | $ 500,000 |  |

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