Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Segment Financial Disclosure

in millions	2011			2010			2009
Total Revenues
Aggregates
Segment revenues		$1,734.0			$1,766.9			$1,838.6
Intersegment sales		(142.6	)		(154.1	)		(165.2	)
Net sales		$1,591.4			$1,612.8			$1,673.4
Concrete
Segment revenues		$374.7			$383.2			$439.4
Intersegment sales		0.0			0.0			(0.1	)
Net sales		$374.7			$383.2			$439.3
Asphalt Mix
Segment revenues		$399.0			$369.9			$393.7
Intersegment sales		0.0			0.0			0.0
Net sales		$399.0			$369.9			$393.7
Cement
Segment revenues		$71.9			$80.2			$72.5
Intersegment sales		(30.1	)		(40.2	)		(35.2	)
Net sales		$41.8			$40.0			$37.3
Totals
Net sales		$2,406.9			$2,405.9			$2,543.7
Delivery revenues		157.7			153.0			146.8
Total revenues		$2,564.6			$2,558.9			$2,690.5
Gross Profit
Aggregates		$306.2			$320.2			$393.3
Concrete		(43.4	)		(45.0	)		(14.5	)
Asphalt Mix		25.6			29.3			69.0
Cement		(4.5	)		(3.8	)		(1.8	)
Total		$283.9			$300.7			$446.0
Depreciation, Depletion, Accretion and Amortization
Aggregates		$277.8			$293.0			$312.2
Concrete		51.5			53.6			52.6
Asphalt Mix		8.2			8.7			8.6
Cement		18.9			20.9			16.3
Corporate and other unallocated		5.3			5.9			4.9
Total		$361.7			$382.1			$394.6
Capital Expenditures
Aggregates		$67.6			$60.6			$74.6
Concrete		6.3			3.7			0.2
Asphalt Mix		16.1			4.5			5.1
Cement		3.2			7.3			22.4
Corporate		4.7			3.3			4.2
Total		$97.9			$79.4			$106.5
Identifiable Assets
Aggregates		$6,837.0			$6,984.5			$7,210.7
Concrete		461.1			483.2			448.9
Asphalt Mix		234.9			211.5			220.6
Cement		417.8			435.0			446.9
Total identifiable assets		7,950.8			8,114.2			8,327.1
General corporate assets		122.7			177.8			177.1
Cash items		155.8			47.5			22.3
Total assets		$8,229.3			$8,339.5			$8,526.5