Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 198,326	$ 162,259
Less: accumulated depreciation	(46,918)	(17,872)
Property and equipment, net	151,408	144,387
Vehicles and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	110,842	84,573
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	23,190	20,569
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24,025	19,118
Software and computers
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	23,812	21,821
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	14,041	14,448
Assets to be placed into service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	699	194
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,717	$ 1,536