Property, Plant and Equipment, net

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, net

7. Property, Plant and Equipment, net

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

	December 31,
	2019			2018
Compression equipment, facilities and other fleet assets	$	3,653,930		$	3,323,465
Land and buildings	50,743			47,067
Transportation and shop equipment	116,057			103,766
Computer hardware and software	93,695			92,174
Other	15,308			11,880
Property, plant and equipment	3,929,733			3,578,352
Accumulated depreciation	(1,370,335		)	(1,407,314		)
Property, plant and equipment, net	$	2,559,398		$	2,171,038

Depreciation expense was $172.8 million, $158.4 million and $170.8 million during the years ended December 31, 2019, 2018 and 2017, respectively. Assets under construction of $51.0 million and $55.4 million at December 31, 2019 and 2018, respectively, were primarily included in compression equipment.