Property and Equipment, Net (Tables)

3 Months Ended

Mar. 31, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

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)	March 31, 2014		December 31, 2013		March 31, 2013
Equipment and vehicles	$	770,266	$	765,971	$	760,717
Quarry property	170,442		170,442		180,506
Land and land improvements	120,092		119,917		125,301
Buildings and leasehold improvements	83,994		83,494		83,733
Office furniture and equipment	70,826		70,156		68,232
Property and equipment	1,215,620		1,209,980		1,218,489
Less: accumulated depreciation and depletion	783,222		773,121		740,823
Property and equipment, net	$	432,398	$	436,859	$	477,666