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Related Party Transactions - Additional Information (Detail) - USD ($) |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Sep. 06, 2024 | Sep. 05, 2024 | Jun. 10, 2022 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Proceeds from other operating activities |  |  |  |  |  | $ 9,800,000 |  |
Services Agreement [Member] | Deep Sea Mineral Company, CIC, LLC [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Debt outstanding with accrued interest |  |  |  | $ 119,300,000 |  | $ 119,300,000 |  |
Purchase Agreement [Member] | Two Seas Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Principal paid | $ 600,000 |  |  |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 3.78 |  | $ 3.78 |  |
Debt instrument face amount |  |  |  | $ 80,459 |  | $ 246,109 |  |
Paid in kind interest into capitalized principal |  |  |  |  |  | 162,163 |  |
Paid in cash capitalized principal |  |  |  | $ 83,946 |  | $ 83,946 |  |
Class of warrants or rights outstanding |  |  |  | 727,514 |  | 727,514 |  |
Purchase Agreement [Member] | Fourworld Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Principal paid | 200,000 |  |  |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 3.78 |  | $ 3.78 |  |
Debt instrument face amount |  |  |  | $ 31,899 |  | $ 97,575 |  |
Paid in kind interest into capitalized principal |  |  |  |  |  | 64,293 |  |
Paid in cash capitalized principal |  |  |  | $ 33,282 |  | $ 33,282 |  |
Class of warrants or rights outstanding |  |  |  | 285,715 |  | 285,715 |  |
December Two Thousand And Twenty Three Purchase Agreement [Member] | Two Seas Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  | $ 59,082 |  | $ 171,232 |  |
December Two Thousand And Twenty Three Purchase Agreement [Member] | Fourworld Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  | $ 14,771 |  | $ 42,831 |  |
December Two Thousand And Twenty Three Purchase Agreement1 [Member] | Two Seas Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 4.25 |  | $ 4.25 |  |
Class of warrants or rights outstanding |  |  |  | 470,588 |  | 470,588 |  |
December Two Thousand And Twenty Three Purchase Agreement1 [Member] | Fourworld Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 4.25 |  | $ 4.25 |  |
Class of warrants or rights outstanding |  |  |  | 117,648 |  | 117,648 |  |
December Two Thousand And Twenty Three Purchase Agreement2 [Member] | Two Seas Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 7.09 |  | $ 7.09 |  |
Class of warrants or rights outstanding |  |  |  | 70,521 |  | 70,521 |  |
December Two Thousand And Twenty Three Purchase Agreement2 [Member] | Fourworld Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 7.09 |  | $ 7.09 |  |
Class of warrants or rights outstanding |  |  |  | 17,631 |  | 17,631 |  |
Related Party [Member] | Back Office Technical and Support Services [Member] | Deep Sea Mineral Company, CIC, LLC [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Invoiced for technical services |  |  |  | $ 100,000 | $ 100,000 | $ 400,000 | $ 600,000 |
Related Party [Member] | Services Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Financing receivable after allowance for credit loss |  |  |  | $ 1,400,000 |  | $ 1,400,000 |  | $ 700,000
Four World Capital Management Llc [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Beneficial ownership percentage |  |  |  | 20.00% |  | 20.00% |  |
Stock issued during the period shares new issues |  |  | 292,628 |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 3.35 |  | $ 3.35 |  |
Four World Capital Management Llc [Member] | 2022 Warrants [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Class of warrants or rights number of securities covered by warrants or rights |  |  | 292,628 |  |  |  |  |
Class of warrants or rights shares issued on the exercise of warrants |  |  | 1,000 |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 3.35 |  | $ 3.35 |  |
Class of warrants or rights outstanding |  |  |  | 291,628 |  | 291,628 |  |
Fourworlds Funds [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Beneficial ownership percentage |  |  |  | 6.00% |  | 6.00% |  |
Two Seas Capital Lp [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Beneficial ownership percentage |  |  |  | 9.99% |  | 9.99% |  |
Stock issued during the period shares new issues |  |  | 447,761 |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  |  | $ 3.35 |  | $ 3.35 |  |
Two Seas Capital Lp [Member] | 2022 Warrants [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Class of warrants or rights number of securities covered by warrants or rights |  |  | 447,761 |  |  |  |  |
Class of warrants or rights outstanding |  |  |  | 447,761 |  | 447,761 |  |
March 2023 Note And Purchase Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Principal paid | $ 3,000,000 |  |  |  |  |  |  |
Debt instrument maturity date |  | Dec. 06, 2024 |  |  |  |  |  |
CIC Limited1 [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Equity Method Investment Ownership Interest |  |  |  | 15.30% |  | 15.30% |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  |  |  |  |  | 11.50% |  |
Ocean Minerals LLC [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Equity Method Investment Ownership Interest |  |  |  | 7.00% |  | 7.00% |  |
Salvage Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Equity Method Investment Ownership Interest |  |  |  | 60.00% |  | 60.00% |  |
Salvage Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Equity Method Investment Ownership Interest |  |  |  | 40.00% |  | 40.00% |  |
Oceanica Marine Operations [Member] | Services Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 18.00% |  | 18.00% |  |
Debt outstanding with accrued interest |  |  |  |  |  |  |  | $ 105,000,000
Oceanica Marine Operations [Member] | Related Party [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Financing receivable after allowance for credit loss |  |  |  | $ 23,000,000 |  | $ 23,000,000 |  |
Oceanica Marine Operations [Member] | Related Party [Member] | Between 2012 and 2014 [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Financing receivable after allowance for credit loss |  |  |  | 11,400,000 |  | 11,400,000 |  |
Oceanica Marine Operations [Member] | Related Party [Member] | Between 2015 and 2017 [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Financing receivable after allowance for credit loss |  |  |  | $ 7,600,000 |  | $ 7,600,000 |  |

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