GOODWILL (Tables)

6 Months Ended

Jun. 30, 2020

GOODWILL [Abstract]

Changes in Carrying Amount of Goodwill by Reportable Segment

in thousands	Aggregates	Asphalt	Concrete	Calcium	Total
Goodwill
Totals at December 31, 2019	$    3,075,428	$     91,633	$              0	$              0	$    3,167,061
Goodwill of acquired businesses 1	5,051	0	0	0	5,051
Totals at June 30, 2020	$    3,080,479	$     91,633	$              0	$              0	$    3,172,112

¹ See Note 16 for summary of recent acquisitions.