Business Segments (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Financial Data for Continuing Operation For Corporation's Reportable Business Segments

The following tables display selected financial data for the Corporation’s reportable business segments.

Selected Financial Data by Business Segment

years ended December 31 (add 000) Total revenues	2014		2013			2012
Mid-America Group	$	848,855	$	789,806		$	761,704
Southeast Group		274,352		245,340			243,442
West Group		1,356,283		875,588			806,043
Total Aggregates Business		2,479,490		1,910,734			1,811,189
Cement		221,759		—			—
Magnesia Specialties		256,702		244,817			220,712
Total	$	2,957,951	$	2,155,551		$	2,031,901
Net sales
Mid-America Group	$	770,568	$	720,007		$	695,819
Southeast Group		254,986		226,437			226,232
West Group		1,207,879		771,133			708,689
Total Aggregates Business		2,233,433		1,717,577			1,630,740
Cement		209,556		—			—
Magnesia Specialties		236,106		225,641			202,217
Total	$	2,679,095	$	1,943,218		$	1,832,957
Gross profit (loss)
Mid-America Group	$	216,883	$	192,747		$	185,191
Southeast Group		10,653		(3,515	)		(6,051	)
West Group		155,678		92,513			76,212
Total Aggregates Business		383,214		281,745			255,352
Cement		52,469		-			-
Magnesia Specialties		84,594		83,703			77,223
Corporate		2,083		(1,491	)		(5,441	)
Total	$	522,360	$	363,957		$	327,134

Net Sales By Product Line

The Aggregates business includes the aggregates product line and aggregates-related downstream operations, which include the asphalt, ready mixed concrete and road paving product lines. All aggregates-related downstream operations reside in the West Group. Total revenues, net sales and gross profit by product line for the Aggregates business, which are reconciled to consolidated amounts, are as follows:

years ended December 31 (add 000) Total revenues	2014		2013			2012
Aggregates	$	1,805,824	$	1,527,986		$	1,470,954
Asphalt		85,822		78,863			93,288
Ready Mixed Concrete		431,229		146,085			110,562
Road Paving		156,615		157,800			136,385
Total Aggregates Business		2,479,490		1,910,734			1,811,189
Cement		221,759		—			—
Magnesia Specialties		256,702		244,817			220,712
Total	$	2,957,951	$	2,155,551		$	2,031,901
Net sales
Aggregates	$	1,570,022	$	1,347,486		$	1,303,975
Asphalt		76,278		66,216			79,816
Ready Mixed Concrete		430,519		146,079			110,554
Road Paving		156,614		157,796			136,395
Total Aggregates Business		2,233,433		1,717,577			1,630,740
Cement		209,556		—			—
Magnesia Specialties		236,106		225,641			202,217
Total	$	2,679,095	$	1,943,218		$	1,832,957
Gross profit (loss)	2014		2013			2012
Aggregates	$	324,093	$	259,054		$	240,614
Asphalt		13,552		12,928			12,099
Ready Mixed Concrete		39,129		8,337			59
Road Paving		6,440		1,426			2,580
Total Aggregates Business		383,214		281,745			255,352
Cement		52,469		—			—
Magnesia Specialties		84,594		83,703			77,223
Corporate		2,083		(1,491	)		(5,441	)
Total	$	522,360	$	363,957		$	327,134

Domestic and Foreign Total Revenues

Domestic and foreign total revenues are as follows:

years ended December 31 (add 000)	2014		2013		2012
Domestic	$	2,912,115	$	2,113,068	$	1,987,228
Foreign		45,836		42,483		44,673
Total	$	2,957,951	$	2,155,551	$	2,031,901