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Summary of Significant Accounting Policies - Estimated useful lives of class of asset (Details)	Dec. 31, 2024
Office and electronic equipment | Minimum
Summary of Significant Accounting Policies
Estimated Useful Life	3 years
Estimated Residual	0.00%
Office and electronic equipment | Maximum
Summary of Significant Accounting Policies
Estimated Useful Life	10 years
Estimated Residual	5.00%
Motor vehicles
Summary of Significant Accounting Policies
Estimated Useful Life	4 years
Estimated Residual	5.00%
Aircraft
Summary of Significant Accounting Policies
Estimated Useful Life	10 years
Estimated Residual	5.00%
Building
Summary of Significant Accounting Policies
Estimated Useful Life	30 years
Estimated Residual	5.00%
Leasehold improvements
Summary of Significant Accounting Policies
Estimated Residual	0.00%

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

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- Definition

Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost.

+ References

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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