INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenues	$ 592,741	$ 412,720
Costs and expenses
Cost of sales, excluding depreciation and amortization	416,095	310,197
Cost of sales depreciation and amortization	32,097	30,946
Selling, general and administrative expenses	22,198	20,548
Operating income	122,351	51,029
Other income (expenses)
Interest expense	(17,464)	(19,019)
Loss on early extinguishment of debt	0	(30,368)
Other income	8,246	6,989
Total other expenses, net	(9,218)	(42,398)
Income before income taxes	113,133	8,631
Income tax provision	(24,236)	(2,698)
Net income	$ 88,897	$ 5,933
Net income per common share
Basic	$ 1.35	$ 0.09
Diluted	1.34	0.09
Dividends declared per common share	$ 0.0750	$ 0.0650