Revenues and Gross Profit (Tables)

12 Months Ended

Dec. 31, 2018

Revenues And Gross Profit [Abstract]

Total Revenues and Gross Profit by Product Line

The following tables, which are reconciled to consolidated amounts, provide total revenues and gross profit by line of business: Building Materials (further divided by product line) and Magnesia Specialties. Interproduct revenues represent sales from the aggregates product line to the ready mixed concrete and asphalt and paving product lines and sales from the cement product line to the ready mixed concrete product line.

years ended December 31 (add 000) Total revenues	2018			2017			2016
Building Materials Business:
Products and services:
Aggregates	$	2,355,673		$	2,134,927		$	2,058,687
Cement		387,830			371,233			364,139
Ready Mixed Concrete		963,770			936,037			902,678
Asphalt and Paving		268,679			292,571			257,873
Less:  Interproduct revenues		(264,237	)		(264,012	)		(247,111	)
Products and services		3,711,715			3,470,756			3,336,266
Freight		244,827			224,848			225,425
Total Building Materials Business		3,956,542			3,695,604			3,561,691
Magnesia Specialties:
Products and services		268,636			252,722			242,384
Freight		19,087			17,268			14,674
Total Magnesia Specialties		287,723			269,990			257,058
Consolidated total revenues	$	4,244,265		$	3,965,594		$	3,818,749
Gross profit (loss)
Building Materials Business:
Products and services:
Aggregates	$	606,759		$	599,670		$	556,131
Cement		126,213			117,021			119,894
Ready Mixed Concrete		74,175			91,646			99,085
Asphalt and Paving		52,917			64,693			53,025
Products and services		860,064			873,030			828,135
Freight		259			2,602			2,501
Total Building Materials Business		860,323			875,632			830,636
Magnesia Specialties:
Products and services		102,905			94,050			93,987
Freight		(4,223	)		(4,652	)		(4,384	)
Total Magnesia Specialties		98,682			89,398			89,603
Corporate		7,572			6,910			(8,501	)
Consolidated gross profit	$	966,577		$	971,940		$	911,738

Domestic and Foreign Total Revenues

Domestic and foreign total revenues are as follows:

years ended December 31 (add 000)	2018		2017		2016
Domestic	$	4,166,339	$	3,901,323	$	3,761,651
Foreign		77,926		64,271		57,098
Consolidated total revenues	$	4,244,265	$	3,965,594	$	3,818,749