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Fair Value Measurements - Change in Fair Value (Details) - Level 3 - Westrock Private Warrants $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Fair Value Measurements
Fair value as of beginning	$ 28,342
Transfer out of Level 3	(18,916)
Change in fair value	(5,090)
Fair value as of ending	$ 4,336

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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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-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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