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Summary of Significant Accounting Policies - Schedule of Property and Equipment Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2019
Minimum [Member] | Vehicles [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	5 years
Minimum [Member] | Computer equipment [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	3 years
Minimum [Member] | Office furniture and fixtures [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	5 years
Minimum [Member] | Machinery and equipment [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	5 years
Minimum [Member] | Leasehold improvements [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	5 years
Maximum [Member] | Vehicles [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	7 years
Maximum [Member] | Computer equipment [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	5 years
Maximum [Member] | Office furniture and fixtures [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	7 years
Maximum [Member] | Machinery and equipment [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	7 years
Maximum [Member] | Leasehold improvements [Member]
Significant Accounting Policies [Line Items]
Useful lives of property and equipment	7 years

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- Definition

Significant accounting policies.

+ References

No definition available.

+ Details

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- 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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- Details

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- Details

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- Details

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X

- Details

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- Details

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X

- Details

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