Fair Value of Financial Instruments, Roll-Forward of Fair Value of Level 3 Warrants (Q3) (Details) - Warrant [Member] - USD ($) $ in Thousands		2 Months Ended	9 Months Ended
Jan. 04, 2023	Dec. 31, 2022	Sep. 30, 2023
Roll-Forward of Fair Value of Level 3 Warrants [Roll Forward]
Beginning balance	$ 6,868	$ 18,695	$ 7,623
Change in fair value	755	(11,827)
Warrants reclassified to equity			(7,623)
Ending balance	$ 7,623	$ 6,868	$ 0

Amount of warrants reclassified to equity measured at fair value on recurring basis using unobservable input (level 3).

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-SubTopic 10
-Topic 820
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

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- Details

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