Business Segments (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

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

10. Business Segments (Continued)

The following tables display selected financial data for continuing operations for the Corporation’s reportable business segments. Total revenues and net sales in the table below, as well as the consolidated statements of earnings and comprehensive earnings, do not include intersegment sales as these sales are eliminated.  

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
	(Dollars in Thousands)
Total revenues:
Mid-America Group	$	289,735		$	271,096		$	688,217		$	627,331
Southeast Group		82,949			73,217			229,144			208,205
West Group		531,256			479,323			1,263,063			956,921
Total Aggregates Business		903,940			823,636			2,180,424			1,792,457
Cement		116,135			115,743			324,134			115,743
Magnesia Specialties		62,174			64,344			190,456			193,378
Total	$	1,082,249		$	1,003,723		$	2,695,014		$	2,101,578
Net sales:
Mid-America Group	$	265,653		$	244,309		$	632,772		$	569,545
Southeast Group		78,283			68,042			214,536			194,148
West Group		493,505			437,398			1,156,075			848,402
Total Aggregates Business		837,441			749,749			2,003,383			1,612,095
Cement		110,519			109,521			307,489			109,521
Magnesia Specialties		57,258			58,672			176,470			177,941
Total	$	1,005,218		$	917,942		$	2,487,342		$	1,899,557
Earnings (Loss) from operations:
Mid-America Group	$	85,693		$	71,185		$	148,385		$	116,703
Southeast Group		7,576			329			10,845			(7,084	)
West Group		87,525			92,115			151,201			125,069
Total Aggregates Business		180,794			163,629			310,431			234,688
Cement		2,758			18,278			37,455			18,278
Magnesia Specialties		16,996			17,697			53,537			54,976
Corporate		(21,050	)		(83,648	)		(59,371	)		(111,642	)
Total	$	179,498		$	115,956		$	342,052		$	196,300

Asset Employed for Continuing Operations for Corporations Reportable Business Segments

	September 30,		December 31,		September 30,
	2015		2014		2014
	(Dollars in Thousands)
Assets employed:
Mid-America Group	$	1,347,706	$	1,290,833	$	1,313,472
Southeast Group		597,018		604,044		604,261
West Group		2,659,024		2,444,400		1,897,626
Total Aggregates Business		4,603,748		4,339,277		3,815,359
Cement		1,973,686		2,451,799		3,038,802
Magnesia Specialties		147,217		150,359		150,068
Corporate		713,797		522,957		334,629
Total	$	7,438,448	$	7,464,392	$	7,338,858

Net Sales and Gross Profit by Line of Business

The Aggregates business includes the aggregates product line and aggregates-related downstream product lines, which include asphalt, ready mixed concrete and road paving product lines. All aggregates-related downstream product lines reside in the West Group. The following tables, which are reconciled to consolidated amounts, provide net sales and gross profit by line of business: Aggregates (further divided by product line), Cement and Magnesia Specialties.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
	(Dollars in Thousands)
Net sales:
Aggregates	$	529,993		$	478,834		$	1,343,821		$	1,164,692
Asphalt		26,817			26,873			55,358			59,998
Ready Mixed Concrete		209,608			183,715			486,931			274,103
Road Paving		71,023			60,327			117,273			113,302
Total Aggregates Business		837,441			749,749			2,003,383			1,612,095
Cement		110,519			109,521			307,489			109,521
Magnesia Specialties		57,258			58,672			176,470			177,941
Total	$	1,005,218		$	917,942		$	2,487,342		$	1,899,557
Gross profit (loss):
Aggregates	$	166,166		$	119,277		$	344,857		$	229,471
Asphalt		10,794			7,356			13,644			10,799
Ready Mixed Concrete		23,557			18,628			34,981			28,554
Road Paving		11,263			6,897			11,529			2,665
Total Aggregates Business		211,780			152,158			405,011			271,489
Cement		38,244			24,194			87,642			24,194
Magnesia Specialties		19,391			20,043			60,793			62,192
Corporate		(6,910	)		(802	)		(16,528	)		(845	)
Total	$	262,505		$	195,593		$	536,918		$	357,030