REVENUES (Tables)

3 Months Ended

Mar. 31, 2018

REVENUE [Abstract]

Revenues by Geographic Market

Our segment total revenues by geographic market for the current period are disaggregated as follows:

	Three Months Ended March 31, 2018
in thousands	Aggregates	Asphalt	Concrete	Calcium	Total
Total Revenues by Geographic Market 1
East	$     193,848	$     11,729	$     61,571	$              0	$      267,148
Gulf Coast	383,941	14,644	25,199	1,942	425,726
West	121,868	77,462	14,192	0	213,522
Segment sales	$     699,657	$   103,835	$   100,962	$       1,942	$      906,396
Intersegment sales	(51,922)	0	0	0	(51,922)
Total revenues	$     647,735	$   103,835	$   100,962	$       1,942	$      854,474

1	The geographic markets are defined by states/countries as follows:
		East market — Arkansas, Delaware, Illinois, Kentucky, Maryland, North Carolina, Pennsylvania, Tennessee, Virginia, and Washington D.C. Gulf Coast market — Alabama, Florida, Georgia, Louisiana, Mexico, Mississippi, Oklahoma, South Carolina, Texas and the Bahamas West market — Arizona, California and New Mexico

Reconciliation of Deferred Revenue Balances

	Three Months Ended
	March 31
in thousands	2018	2017
Deferred Revenue
Balance at beginning of period	$     199,556	$     206,468
Revenue recognized from deferred revenue	(1,355)	(1,649)
Balance at end of period	$     198,201	$     204,819