Property Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Components of Property and Equipment

Property, plant and equipment consisted of the following (in thousands):

	December 31,						Estimated Useful Lives
	2019			2018
Vehicles	$	46,496		$	45,050		3-5 years
Computer equipment and software	63,197			53,891			3-5 years
Leasehold improvements	28,593			26,401			2-15 years
Office furniture, fixtures and equipment	20,786			19,532			2-7 years
Build-to-suit lease building	—			8,247			10.5 years
Construction in process	3,480			2,975
Property, plant and equipment, gross	162,552			156,096
Accumulated depreciation and amortization	(101,464		)	(82,695		)
Property, plant and equipment, net	$	61,088		$	73,401