Property and Equipment, Net (Tables)

3 Months Ended

Mar. 31, 2015

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, 2015		December 31, 2014		March 31, 2014
Equipment and vehicles	$	766,066	$	767,313	$	770,266
Quarry property	172,046		172,081		170,442
Land and land improvements	110,302		110,235		120,092
Buildings and leasehold improvements	82,628		82,655		83,994
Office furniture and equipment	70,820		70,820		70,826
Property and equipment	1,201,862		1,203,104		1,215,620
Less: accumulated depreciation and depletion	801,952		793,451		783,222
Property and equipment, net	$	399,910	$	409,653	$	432,398