Property, Plant and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment

Property, Plant and Equipment

Note 7: Property, Plant and Equipment

Property, plant and equipment are presented at cost net of accumulated depreciation and consist of the following:

December 31,	2020		2019
(in thousands)
Land	$	19,474	$	18,945
Buildings and leasehold improvements		122,289		114,318
Operating equipment		645,576		1,194,071
Computer software		24,681		25,247
Furniture and fixtures		6,692		7,086
Vehicles		236,411		553,968
Gross property, plant and equipment		1,055,123		1,913,635
Less: accumulated depreciation		(790,712)		(1,396,908)
Net property, plant and equipment	$	264,411	$	516,727

Depreciation expense was $95.3 million in 2020, $172.6 million in 2019, and $166.2 million in 2018. There were no capital leases outstanding as of December 31, 2020 and December 31, 2019. The Company had accounts payable for purchases of property and equipment of $3.9 million as of December 31, 2020, $6.8 million as of December 31, 2019, and $14.8 million as of December 31, 2018. The Company transferred inventory to property, plant and equipment totaling $8.6 million in 2020 and $20.8 million in 2019.