Property, Plant and Equipment

3 Months Ended

Mar. 31, 2018

Property, Plant and Equipment [Abstract]

The following is a summary of property, plant and equipment at March 31, 2018 and December 31, 2017 (in thousands):



	Estimated Useful Lives in Years	March 31, 2018			December 31, 2017
Land	—	$	15,365		$	15,314
Land improvements ⁽¹⁾	8-15	15,080			14,594
Buildings and improvements ⁽¹⁾	39	117,003			119,380
Rental machinery and equipment	7	900,702			898,146
Machinery and equipment - other	7	55,351			55,049
Furniture, fixtures and computers	5	27,697			27,259
Automobiles and other vehicles	5	30,001			29,971
Leasehold improvements ⁽¹⁾	7-15, or lease term if shorter	11,915			10,030
Construction in progress - machinery and equipment and land improvements ⁽¹⁾	—	61,644			61,836
		1,234,758			1,231,579
Less: Accumulated depreciation		(785,605		)	(761,933		)
Total property, plant and equipment, net		$	449,153		$	469,646


⁽¹⁾	See Note 11 - Related Party Transactions for additional information.

During the third quarter of 2017, we committed to sell certain of our buildings in the Middle East region and determined those assets met the criteria to be classified as held for sale in our condensed consolidated balance sheet. As a result, we reclassified the buildings, with a net book value of $4.1 million, from property, plant and equipment to assets held for sale. During the first quarter of 2018, we sold one of the buildings classified as held for sale for $0.8 million and recorded an immaterial loss.

The following table presents the depreciation and amortization expense associated with each line item for the three months ended March 31, 2018 and 2017 (in thousands):



	Three Months Ended
	March 31,
	2018		2017
Services	$	23,579	$	26,643
Products	1,137		1,309
General and administrative expenses	3,584		3,147
Total	$	28,300	$	31,099