Property, Plant and Equipment

12 Months Ended

Dec. 31, 2014

Note 4: Property, Plant and Equipment

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

December 31,	2014			2013
(in thousands)
Land	$	18,563		$	19,264
Buildings and leasehold improvements		134,994			130,072
Operating equipment		1,425,846			1,231,504
Computer software		19,005			17,121
Furniture and fixtures		7,835			7,737
Vehicles		479,628			387,854
Construction in progress		2,675			2,076
Gross property, plant and equipment		2,088,546			1,795,628
Less: accumulated depreciation		(1,239,163	)		(1,069,321	)
Net property, plant and equipment	$	849,383		$	726,307

Depreciation expense was $233.4 million in 2014, $215.4 million in 2013, and $214.9 million in 2012, and includes amounts recorded as costs of sales and inventory. There were no capital leases outstanding as of December 31, 2014 and December 31, 2013. The Company had accounts payable for purchases of property and equipment of $38.5 million as of December 31, 2014, $19.7 million as of December 31, 2013, and $24.4 million as of December 31, 2012.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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