Property, Plant And Equipment

12 Months Ended

Dec. 31, 2019

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment

(4) Property, Plant and Equipment

A summary of property, plant and equipment is as follows (in thousands):

	December 31,
	2019		2018
Machinery and equipment	$	2,425,526	$	3,229,793
Buildings, improvements and leasehold improvements		255,719		278,339
Automobiles, trucks, tractors and trailers		22,727		26,522
Furniture and fixtures		40,694		52,045
Construction-in-progress		16,661		38,119
Land		48,534		58,047
Oil and gas producing assets		69,204		66,605
Total		2,879,065		3,749,470
Accumulated depreciation and depletion		(2,214,116)		(2,640,344)
Property, plant and equipment, net	$	664,949	$	1,109,126

The Company had $68.4 million and $74.9 million of leasehold improvements at December 31, 2019 and 2018, respectively. These leasehold improvements are depreciated over the shorter of the life of the asset or the term of the lease using the straight line method. As of December 31, 2019, $179.1 million of property, plant and equipment relating to Pumpco was classified as assets held for sale on the consolidated balance sheet. Depreciation expense (excluding depletion, amortization and accretion) was $180.2 million, $258.6 million and $312.4 million during 2019, 2018 and 2017, respectively.