Summary of Significant Accounting Policies - Schedule of Depreciation and Amortization (Details)	12 Months Ended
	Dec. 31, 2017
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life	7 years
Minimum | Buildings
Property, Plant and Equipment [Line Items]
Useful life	5 years
Minimum | Vehicles and equipment
Property, Plant and Equipment [Line Items]
Useful life	2 years
Minimum | Software and computers
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Useful life	3 years
Maximum | Buildings
Property, Plant and Equipment [Line Items]
Useful life	25 years
Maximum | Vehicles and equipment
Property, Plant and Equipment [Line Items]
Useful life	10 years
Maximum | Software and computers
Property, Plant and Equipment [Line Items]
Useful life	5 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Useful life	10 years