Property and Equipment, Net

9 Months Ended

Sep. 30, 2011

Property, Plant and Equipment [Abstract]

Property and Equipment, net

Balances of major classes of assets and allowances for depreciation and depletion are included in property and equipment, net on our condensed consolidated balance sheets as follows:



(in thousands)	September 30, 2011		December 31, 2010		September 30, 2010
Land and land improvements	$	122,728	$	120,342	$	123,278
Quarry property	175,431		174,231		175,048
Buildings and leasehold improvements	81,217		85,655		89,401
Equipment and vehicles	753,776		778,443		791,449
Office furniture and equipment	48,996		42,509		41,354
Property and equipment	1,182,148		1,201,180		1,220,530
Less: accumulated depreciation and depletion	728,326		727,573		729,167
Property and equipment, net	$	453,822	$	473,607	$	491,363

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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