v3.25.4

Long-Term Investments, Net - Schedule of Cumulative Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Schedule of Cumulative Unrealized Gains and Losses [Abstract]
Downward adjustments (including impairment)	$ (53,318)	$ (37,347)
Upward adjustments	6,209	6,209
Total	$ (47,109)	$ (31,138)

X

- Definition

Amount of downward adjustments, including impairment.

+ References

No definition available.

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Balance Type:	debit
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X

- Definition

Upward adjustments.

+ References

No definition available.

+ Details

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Namespace Prefix:	illr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration

X

- Definition

Amount of unrealized gain (loss) on investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

+ Details

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