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Revenues - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Contract with Customer, Liability [Abstract]
Beginning balance	$ 35,475	$ 44,405
Sale of Board.org		(9,117)
Sale of Dragonfly and Oxford Analytica	(7,342)
Revenue recognized in the current period from amounts in the prior balance	(17,472)	(19,249)
New deferrals, net of amounts recognized in the current period	25,621	29,502
Effects of foreign currency	277	(118)
Ending balance	$ 36,559	$ 45,423

X

- Definition

Contract with customer liability increase (decrease) for effects of foreign currency.

+ References

No definition available.

+ Details

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X

- Definition

Contract with customer liability new deferrals, net of amounts recognized.

+ References

No definition available.

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X

- Definition

Contract with customer liability revenue from sale of Board.Org.

+ References

No definition available.

+ Details

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Namespace Prefix:	note_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Contract with customer liability revenue from sale of dragonfly and oxford analytica.

+ References

No definition available.

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X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

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- References

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

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