CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
CONSOLIDATED STATEMENTS OF OPERATIONS
REVENUES	$ 1,103,464	$ 1,321,692	$ 2,209,558	$ 2,589,783
OPERATING EXPENSES	1,061,348	1,185,654	2,146,283	2,360,802
OPERATING INCOME	42,116	136,038	63,275	228,981
OTHER INCOME (COSTS)
Interest and dividend income	3,725	353	6,658	452
Interest and other related financing costs	(2,205)	(1,863)	(4,532)	(3,803)
Other, net	5,038	(2,807)	6,818	(3,633)
TOTAL OTHER INCOME (COSTS)	6,558	(4,317)	8,944	(6,984)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	48,674	131,721	72,219	221,997
INCOME TAX PROVISION	9,074	30,179	13,772	52,447
NET INCOME FROM CONTINUING OPERATIONS	39,600	101,542	58,447	169,550
INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX	843	919	53,279	2,480
NET INCOME	$ 40,443	$ 102,461	$ 111,726	$ 172,030
BASIC EARNINGS PER COMMON SHARE
Continuing operations (in dollars per share)	$ 1.65	$ 4.13	$ 2.42	$ 6.88
Discontinued operations (in dollars per share)	0.04	0.04	2.20	0.10
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	1.68	4.16	4.62	6.98
DILUTED EARNINGS PER COMMON SHARE
Continuing operations (in dollars per share)	1.60	3.97	2.35	6.58
Discontinued operations (in dollars per share)	0.03	0.04	2.14	0.10
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 1.64	$ 4.00	$ 4.49	$ 6.68
AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	24,064,882	24,607,362	24,175,893	24,658,739
Diluted (in shares)	24,672,948	25,596,031	24,864,691	25,756,314