Revenues and Gross Profit (Tables)

3 Months Ended

Mar. 31, 2018

Revenues And Gross Profit [Abstract]

Total Revenues and Gross Profit by Product Line

The following table, which is reconciled to consolidated amounts, provides total revenues and gross profit by product line.

	Three-Months Ended
	March 31,
	2018			2017
	(Dollars in Thousands)
Total revenues:
Building Materials Business:
Products and services:
Aggregates	$	425,016		$	451,055
Cement		89,183			93,554
Ready mixed concrete		218,537			222,378
Asphalt and paving services		16,365			21,737
Less: interproduct revenues		(60,665	)		(60,710	)
Products and services		688,436			728,014
Freight		44,306			47,268
Total Building Materials Business		732,742			775,282
Magnesia Specialties:
Products and services		64,869			64,302
Freight		4,393			4,275
Total Magnesia Specialties		69,262			68,577
Total	$	802,004		$	843,859
Gross profit (loss):
Building Materials Business:
Products and services:
Aggregates	$	53,002		$	78,954
Cement		23,734			30,780
Ready mixed concrete		15,641			19,790
Asphalt and paving services		(7,639	)		(4,740	)
Products and services		84,738			124,784
Freight		(119	)		407
Total Building Materials Business		84,619			125,191
Magnesia Specialties:
Products and services		25,063			23,354
Freight		(1,174	)		(1,039	)
Total Magnesia Specialties		23,889			22,315
Corporate		1,884			(439	)
Total	$	110,392		$	147,067