Reverse Recapitalization - Legacy GCT and Sponsor Earn out Shares (Details) - Legacy G C T $ / shares in Units, $ in Millions	Mar. 26, 2024 USD ($) $ / shares shares
Earnout shares
Reverse Recapitalization [Line Items]
Number of shares issued	20,000,000
Threshold trading days calculated for issuing shares	60 days
Fair value of shares issued \| $	$ 108.8
Impact on stockholder's equity \| $	$ 0.0
Earnout shares \| VWAP of the Company's common stock equals or exceeds $12.50 per share
Reverse Recapitalization [Line Items]
Number of shares issued	6,666,667
Threshold trading days calculated for issuing shares	20 days
Consecutive threshold trading days calculated for issuing shares	30 days
Threshold VWAP of stock to trigger earn out shares \| $ / shares	$ 12.50
Earnout shares \| VWAP of the Company's common stock equals or exceeds $15.00 per share
Reverse Recapitalization [Line Items]
Number of shares issued	6,666,666
Threshold trading days calculated for issuing shares	20 days
Consecutive threshold trading days calculated for issuing shares	30 days
Threshold VWAP of stock to trigger earn out shares \| $ / shares	$ 15.00
Earnout shares \| VWAP of the Company's common stock equals or exceeds $17.50 per share
Reverse Recapitalization [Line Items]
Number of shares issued	6,666,667
Threshold trading days calculated for issuing shares	20 days
Consecutive threshold trading days calculated for issuing shares	30 days
Threshold VWAP of stock to trigger earn out shares \| $ / shares	$ 17.50
Sponsor Earnout Shares
Reverse Recapitalization [Line Items]
Number of shares issued	1,920,375
Threshold trading days calculated for issuing shares	6 months
Fair value of shares issued \| $	$ 10.4
Impact on stockholder's equity \| $	$ 0.0
Sponsor Earnout Shares \| Minimum
Reverse Recapitalization [Line Items]
Number of shares issued	570,796
Sponsor Earnout Shares \| VWAP of the Company's common stock equals or exceeds $12.50 per share
Reverse Recapitalization [Line Items]
Number of shares issued	640,125
Threshold trading days calculated for issuing shares	20 days
Consecutive threshold trading days calculated for issuing shares	30 days
Threshold VWAP of stock to trigger earn out shares \| $ / shares	$ 12.50
Sponsor Earnout Shares \| VWAP of the Company's common stock equals or exceeds $15.00 per share
Reverse Recapitalization [Line Items]
Number of shares issued	640,125
Threshold trading days calculated for issuing shares	20 days
Consecutive threshold trading days calculated for issuing shares	30 days
Threshold VWAP of stock to trigger earn out shares \| $ / shares	$ 15.00
Sponsor Earnout Shares \| VWAP of the Company's common stock equals or exceeds $17.50 per share
Reverse Recapitalization [Line Items]
Number of shares issued	640,125
Threshold trading days calculated for issuing shares	20 days
Consecutive threshold trading days calculated for issuing shares	30 days
Threshold VWAP of stock to trigger earn out shares \| $ / shares	$ 17.50

The amount of increase (decrease) in shareholder's equity due to the transactions.

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- Definition

Threshold weighted average price of stock to trigger earn out share release in reverse recapitalization.

+ References

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- Definition

The number of consecutive trading days for determining volume weighted average shares of common stock.

+ References

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The number of trading days for determining volume weighted average shares of common stock.

+ References

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- Definition

Number of shares of equity interests issued or issuable to acquire entity as contingent consideration.

+ References

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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.

+ References

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- Definition

The fair value of shares that would be issued, determined under the conditions specified in the contract if the settlement were to occur at the reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481648/480-10-50-2

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