Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Income (loss) before income taxes from continuing operations	$ 154,954	$ 131,542	$ (16,171)
Income from discontinued operations, net of income taxes	12,025	4,324	1,956
Net income (loss)	166,979	135,866	(14,215)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation and amortization	134,742	178,934	188,638
Bad debt expense, net	6,001	237	7,042
Equity in losses (earnings) of affiliates, net of dividends	5,671	(4,842)	(638)
Gain on sales of assets, net	(7,148)	(6,184)	(686)
Stock-based compensation expense	11,192	11,038	10,183
Deferred federal income tax	(20,009)	(104,618)	26,386
Gain on sale of business from continuing operations	0	(14,619)	0
(Gain) loss on sale of business from discontinued operations	(27,091)	1,491	0
Asset impairment	11,818	8,947	0
Damaged inventory	17,328	0	0
Other	15,550	10,545	21,748
Changes in operating assets and liabilities:
Accounts and notes receivable	(391,403)	(184,002)	(128,502)
Inventories	56,859	(528,073)	(139,499)
Commodity derivatives	65,399	(107,188)	(115,170)
Other current and non-current assets	10,936	(116,403)	(53,208)
Payables and other current and non-current liabilities	230,293	667,821	123,489
Net cash provided by (used in) operating activities	287,117	(51,050)	(74,432)
Investing Activities
Acquisition of businesses, net of cash acquired	(20,245)	(11,425)	0
Purchases of property, plant and equipment and capitalized software	(108,284)	(75,766)	(77,147)
Proceeds from sale of assets	5,307	4,508	11,112
Purchase of investments	(2,105)	(6,243)	(3,059)
Proceeds from sale of business from continuing operations	5,171	18,130	0
Proceeds from sale of business from discontinued operations	56,302	543,102	0
Purchases of Rail assets	(31,458)	(6,039)	(27,739)
Proceeds from sale of Rail assets	36,706	19,150	10,077
Other	5,704	1,831	0
Net cash (used in) provided by investing activities	(52,902)	487,248	(86,756)
Financing Activities
Net (payments) receipts under short-term lines of credit	(21,273)	(105,895)	254,971
Proceeds from issuance of short-term debt	350,000	608,250	0
Payments of short-term debt	(550,000)	(408,250)	0
Proceeds from issuance of long-term debt	0	203,000	471,906
Payments of long-term debt	(30,045)	(530,733)	(559,711)
Contributions from noncontrolling interest owner	4,900	4,655	8,576
Distributions to noncontrolling interest owner	(44,910)	(25)	(10,322)
Payments of debt issuance costs	(8,108)	(2,692)	(898)
Dividends paid	(24,609)	(23,746)	(23,004)
Proceeds from exercises of stock options	5,024	6,667	0
Common stock repurchased	(12,721)	0	0
Other	(2,988)	0	(5,222)
Net cash (used in) provided by financing activities	(334,730)	(248,769)	136,296
Effect of exchange rates on cash and cash equivalents	(660)	(108)	(880)
(Decrease) increase in Cash and cash equivalents	(101,175)	187,321	(25,772)
Cash and cash equivalents at beginning of year	216,444	29,123	54,895
Cash and cash equivalents at end of year	$ 115,269	$ 216,444	$ 29,123