Property and Equipment, Net

6 Months Ended

Jun. 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)	June 30, 2011		December 31, 2010		June 30, 2010
Land and land improvements	$	124,892	$	120,342	$	124,621
Quarry property	173,055		174,231		172,140
Buildings and leasehold improvements	81,325		85,655		89,209
Equipment and vehicles	772,800		778,443		807,267
Office furniture and equipment	45,840		42,509		39,441
Property and equipment	1,197,912		1,201,180		1,232,678
Less: accumulated depreciation and depletion	733,296		727,573		731,420
Property and equipment, net	$	464,616	$	473,607	$	501,258

- 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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