Note 13 - Property and Equipment, Net (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Property, Plant and Equipment [Table Text Block]

(in thousands)	September 30, 2019		December 31, 2018		September 30, 2018
Equipment and vehicles	$	949,577	$	906,275	$	917,186
Quarry property		185,792		180,246		180,004
Land and land improvements		134,543		142,271		138,875
Buildings and leasehold improvements		112,940		108,884		105,895
Office furniture and equipment		66,791		65,680		63,354
Property and equipment		1,449,643		1,403,356		1,405,314
Less: accumulated depreciation and depletion		906,847		853,668		844,696
Property and equipment, net	$	542,796	$	549,688	$	560,618