Debt Instrument, Number of Tranches

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- Definition

Debt Instrument, Option Payment Amounts

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- Definition

Debt Instrument, Original Issue Discount, Percentage

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- Definition

Line Of Credit Facility, Maximum Borrowing Capacity, Including Capitalized Interest Capacity

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- Definition

Number Of Debt Drawn Installments

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- Definition

Proceeds From Issuance of Debt, Net of Original Issue Discount

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- Definition

Working Capital

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No definition available.

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- Definition

Amount of expense (income) and loss (gain) in reconciling net income to reflect cash provided by (used in) operating activity when indirect cash flow method is applied.

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Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

The average effective interest rate during the reporting period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Overview (Details)									3 Months Ended		6 Months Ended		7 Months Ended
Overview (Details)	Jul. 01, 2025 USD ($)	Jun. 03, 2025 USD ($)	Jun. 02, 2025 USD ($)	May 29, 2025 $ / shares shares	Jan. 24, 2025 USD ($)	Oct. 31, 2024 USD ($)	Aug. 29, 2024 USD ($)	Jun. 21, 2024 USD ($) installment	Jun. 30, 2025 USD ($) $ / shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) segment $ / shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) $ / shares	Dec. 31, 2024 USD ($)	Nov. 26, 2024 USD ($) tranche	Jun. 20, 2024
Line of Credit Facility [Line Items]
Number of reportable segments \| segment											1
Number of operating segments \| segment											1
Sale of stock, price per share (in dollars per share) \| $ / shares									$ 0.76		$ 0.76		$ 0.76
Net Loss attributable to shareholders									$ (222,937,000)	$ (28,172,000)	$ (207,801,000)	$ (74,880,000)
Non-cash items total											106,948,000
Net cash used in operating activities											(95,046,000)	(66,807,000)
Accumulated deficit									(1,773,973,000)		(1,773,973,000)		$ (1,773,973,000)	$ (1,561,716,000)
Cash and cash equivalents									120,225,000	$ 52,454,000	120,225,000	52,454,000	120,225,000	$ 74,292,000
Working capital									128,025,000		128,025,000		128,025,000
Proceeds from issuance of secured debt											38,475,000	$ 70,075,000
Private Placement
Line of Credit Facility [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares				21,562,500
Cash received			$ 81,075,000
Private Placement \| Scenario, Plan
Line of Credit Facility [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares				18,750,000
Sale of stock, price per share (in dollars per share) \| $ / shares				$ 4.00
Over-Allotment Option \| Scenario, Plan
Line of Credit Facility [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares				2,812,500
Delayed Draw Term Loan \| Secured Debt
Line of Credit Facility [Line Items]
Principal amount								$ 210,500,000
Number of installments \| installment								4
Proceeds from issuance of secured debt					$ 40,500,000	$ 65,000,000	$ 30,000,000
Percentage of original issue discount																5.00%
Proceeds from issuance of unsecured debt, net of original issue discount					$ 38,475,000	$ 61,750,000	$ 28,500,000
Delayed Draw Term Loan \| Secured Debt \| EOS Energy Enterprises, Inc. \| CCM Denali Debt Holdings, LP
Line of Credit Facility [Line Items]
Ownership percentage, noncontrolling owner								33.00%
Credit Facility \| Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity								$ 105,000,000
DOE Loan Facility \| DOE Loan Facility Tranche 1
Line of Credit Facility [Line Items]
Maximum borrowing capacity									$ 90,945,000		90,945,000		90,945,000		$ 101,979,000
DOE Loan Facility \| DOE Loan Facility Tranche 2
Line of Credit Facility [Line Items]
Maximum borrowing capacity															117,326,000
DOE Loan Facility \| DOE Loan Facility Tranche 3
Line of Credit Facility [Line Items]
Maximum borrowing capacity															71,836,000
DOE Loan Facility \| DOE Loan Facility Tranche 4
Line of Credit Facility [Line Items]
Maximum borrowing capacity															12,309,000
DOE Loan Facility \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity															277,497,000
Capitalized interest capacity															$ 303,450
Loan facility draw down													$ 68,279,000
DOE Loan Facility \| Line of Credit \| Subsequent Event
Line of Credit Facility [Line Items]
Proceeds from issuance of secured debt	$ 22,666,000
DOE Loan Facility \| Line of Credit \| Minimum
Line of Credit Facility [Line Items]
Debt instrument, number of tranches \| tranche															2
DOE Loan Facility \| Line of Credit \| Maximum
Line of Credit Facility [Line Items]
Debt instrument, number of tranches \| tranche															4
DOE Loan Facility \| Line of Credit \| DOE Loan Facility Tranche 1
Line of Credit Facility [Line Items]
Loan facility draw down											$ 68,279,000
2025 Convertible Notes
Line of Credit Facility [Line Items]
Debt instrument, interest rate during period		6.75%
2025 Convertible Notes \| Convertible Notes
Line of Credit Facility [Line Items]
Principal amount		$ 225,000,000
Debt instrument, option payment amounts		$ 25,000,000
Delayed Draw Term Loan (DDTL), Initial Draw \| Secured Debt
Line of Credit Facility [Line Items]
Principal amount								75,000,000
Proceeds from issuance of secured debt								70,075,000
Proceeds from issuance of unsecured debt, net of original issue discount								$ 71,250,000