CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS
REVENUES	$ 1,392,929	$ 948,973	$ 2,728,003	$ 1,778,186
OPERATING EXPENSES	1,255,583	874,674	2,495,729	1,671,696
OPERATING INCOME	137,346	74,299	232,274	106,490
OTHER INCOME (COSTS)
Interest and dividend income	361	322	467	714
Interest and other related financing costs	(1,863)	(2,274)	(3,802)	(4,702)
Other, net	(2,807)	1,111	(3,633)	2,303
Total other costs	(4,309)	(841)	(6,968)	(1,685)
INCOME BEFORE INCOME TAXES	133,037	73,458	225,306	104,805
INCOME TAX PROVISION	30,576	12,477	53,276	20,463
NET INCOME	$ 102,461	$ 60,981	$ 172,030	$ 84,342
EARNINGS PER COMMON SHARE
Basic	$ 4.16	$ 2.38	$ 6.98	$ 3.30
Diluted	$ 4.00	$ 2.27	$ 6.68	$ 3.13
AVERAGE COMMON SHARES OUTSTANDING
Basic	24,607,362	25,586,353	24,658,739	25,522,453
Diluted	25,596,031	26,910,796	25,756,314	26,926,133