UNAUDITED SUPPLEMENTARY DATA (Tables)

12 Months Ended

Dec. 31, 2018

UNAUDITED SUPPLEMENTARY DATA [Abstract]

Summary of Selected Quarterly Financial Information (Unaudited)

	2018
	Three Months Ended
in thousands, except per share data	March 31	June 30	Sept 30	Dec 31
Total revenues	$     854,474	$  1,200,151	$  1,240,197	$  1,088,047
Gross profit	159,334	323,184	343,142	275,285
Operating earnings	81,195	230,843	249,184	186,491
Earnings from continuing operations	53,395	160,302	179,864	124,280
Net earnings	52,979	159,652	179,151	124,023
Basic earnings per share from continuing operations	$           0.40	$           1.21	$           1.36	$           0.94
Diluted earnings per share from continuing operations	$           0.40	$           1.20	$           1.34	$           0.93
Basic net earnings per share	$           0.40	$           1.21	$           1.35	$           0.94
Diluted net earnings per share	$           0.39	$           1.19	$           1.34	$           0.93

	2017
	Three Months Ended
in thousands, except per share data	March 31	June 30	Sept 30	Dec 31
Total revenues	$     787,328	$  1,030,763	$  1,094,715	$     977,490
Gross profit	158,221	290,017	303,758	241,517
Operating earnings	70,388	191,976	227,478	149,202
Earnings from continuing operations	43,523	111,749	110,150	327,969
Net earnings	44,921	120,139	108,579	327,546
Basic earnings per share from continuing operations	$           0.33	$           0.84	$           0.83	$           2.47
Diluted earnings per share from continuing operations	$           0.32	$           0.83	$           0.82	$           2.43
Basic net earnings per share	$           0.34	$           0.91	$           0.82	$           2.47
Diluted net earnings per share	$           0.33	$           0.89	$           0.81	$           2.43