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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