v3.21.2

Summary of Significant Accounting Policies - Property and Equipment (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Buildings.
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	15 years	15 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Minimum | Vehicles
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Minimum | Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Minimum | Office equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Maximum | Vehicles
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	10 years	10 years
Maximum | Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	7 years	7 years
Maximum | Office equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	7 years	7 years

X

- 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

No definition available.

+ Details

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X

- Definition

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.

+ Details

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X

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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