Convertible Preferred Stock - Summary of Preferred Stock (Detail) - USD ($) $ / shares in Units, $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Temporary Equity [Line Items]
Preferred Stock Authorized	6,825,483	6,825,483	6,825,483
Preferred Stock Issued	6,825,483	6,825,483	6,825,483
Preferred Stock Outstanding	6,825,483	6,825,483	6,825,483
Carrying Value	$ 80,627	$ 80,627	$ 80,627
Liquidation Preference	$ 87,459	$ 87,459	$ 87,459
Common Stock Issuable Upon Conversion	6,825,483	6,825,483	6,825,483
Series A-1 Preferred Stock [Member]
Temporary Equity [Line Items]
Par Value	$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock Authorized	4,118,120	4,118,120	4,118,120
Preferred Stock Issued	4,118,120	4,118,120	4,118,120
Preferred Stock Outstanding	4,118,120	4,118,120	4,118,120
Carrying Value	$ 45,016	$ 45,016	$ 45,016
Liquidation Preference	$ 54,308	$ 54,308	$ 54,308
Common Stock Issuable Upon Conversion	4,118,120	4,118,120	4,118,120
Series A-2 Preferred Stock [Member]
Temporary Equity [Line Items]
Par Value	$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock Authorized	1,649,188	1,649,188	1,649,188
Preferred Stock Issued	1,649,188	1,649,188	1,649,188
Preferred Stock Outstanding	1,649,188	1,649,188	1,649,188
Carrying Value	$ 21,654	$ 21,654	$ 21,654
Liquidation Preference	$ 21,749	$ 21,749	$ 21,749
Common Stock Issuable Upon Conversion	1,649,188	1,649,188	1,649,188
Series A-3 Preferred Stock [Member]
Temporary Equity [Line Items]
Par Value	$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock Authorized	696,516	696,516	696,516
Preferred Stock Issued	696,516	696,516	696,516
Preferred Stock Outstanding	696,516	696,516	696,516
Carrying Value	$ 9,187	$ 9,187	$ 9,187
Liquidation Preference	$ 7,348	$ 7,348	$ 7,348
Common Stock Issuable Upon Conversion	696,516	696,516	696,516
Series A-4 Preferred Stock [Member]
Temporary Equity [Line Items]
Par Value	$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock Authorized	361,659	361,659	361,659
Preferred Stock Issued	361,659	361,659	361,659
Preferred Stock Outstanding	361,659	361,659	361,659
Carrying Value	$ 4,770	$ 4,770	$ 4,770
Liquidation Preference	$ 4,054	$ 4,054	$ 4,054
Common Stock Issuable Upon Conversion	361,659	361,659	361,659

Common stock shares issuable on conversion into permanent equity.

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- Definition

As of the reporting date, the carrying amount of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of preferred shares (regardless of class), preferred partnership units (regardless of class), preferential membership interests, or any other form of preferred equity regardless of investee entity legal form.

+ References

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-Name Accounting Standards Codification
-Topic 480
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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

No definition available.

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- Definition

The aggregate liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References

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- Definition

Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable.

+ References

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- Definition

The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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- Definition

The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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- Definition

The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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