Debt Instrument, Future Periodic Payment

No definition available.

Name:	t1_DebtInstrumentFuturePeriodicPayment
Namespace Prefix:	t1_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Debt Instrument, Interest Rate Terms, Period For Interest Rate Revision

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Long-Term Debt, Convertible Note, Non-Current

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

+ References

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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Incremental percentage increase (decrease) in the stated rate on a debt instrument.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

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Period Type:

- Details

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Period Type:

- Details

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Period Type:

- Details

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DEBT - Narrative (Details) $ in Thousands, shares in Millions	3 Months Ended
	Mar. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($)	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Restricted cash	$ 2,210	$ 4,004	$ 2,911
Trina Solar AG Note \| Senior notes
Debt Instrument [Line Items]
Debt instrument, future periodic payment	7,500
Debt instrument, balloon payment to be paid	$ 30,000
Interest Rate	1.00%
Trina Solar (U.S.), Inc. Production Reserve Fee \| Loans payable
Debt Instrument [Line Items]
Debt instrument, future periodic payment	$ 44,000
Interest Rate	0.00%
Debt instrument, interest rate, increase (decrease)	6.00%
Convertible note - related party \| Convertible debt
Debt Instrument [Line Items]
Debt instrument, interest rate, increase (decrease)	3.00%
Unsecured convertible note	$ 80,000
Debt instrument, term	5 years
Debt instrument, interest rate terms	60 days
Convertible note - related party	$ 82,100
Convertible note - related party \| Convertible debt \| Tranche one
Debt Instrument [Line Items]
Number of equity instruments (in shares) \| shares	12.5
Convertible note - related party \| Convertible debt \| Tranche two
Debt Instrument [Line Items]
Number of equity instruments (in shares) \| shares	17.9
Secured debt \| Senior Secured Credit Facility \| Line of credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 235,000
Restricted cash	$ 22,300
Secured debt \| Senior Secured Credit Facility \| Line of credit \| Base rate
Debt Instrument [Line Items]
Basis spread on variable rate	3.50%
Secured debt \| Senior Secured Credit Facility \| Line of credit \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%