Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net loss	$ (51,111)	$ (14,148)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	46,898	33,760
Bad debt expense	4,310	318
Equity in earnings of affiliates, net of dividends	(129)	(1,465)
Gains on sales of Rail Group assets and related leases	(645)	(736)
Stock-based compensation expense	2,880	4,799
Deferred federal income tax	16,474	(5,640)
Inventory write down	10,571	0
Other	4,001	4,528
Changes in operating assets and liabilities:
Accounts receivable	(11,737)	(79,295)
Inventories	122,323	124,741
Commodity derivatives	1,231	(9,149)
Other assets	(10,887)	11,337
Payables and other accrued expenses	(362,609)	(191,095)
Net cash used in operating activities	(228,430)	(122,045)
Investing Activities
Acquisition of business, net of cash acquired	0	(147,343)
Purchases of Rail Group assets	(13,270)	(15,873)
Proceeds from sale of Rail Group assets	2,405	1,948
Purchases of property, plant and equipment and capitalized software	(19,307)	(44,728)
Proceeds from sale of assets	36	400
Purchase of investments	(280)	(240)
Net cash used in investing activities	(30,416)	(205,836)
Financing Activities
Net change in short-term borrowings	251,712	9,942
Proceeds from issuance of long-term debt	90,736	693,761
Payments of long-term debt	(104,913)	(361,067)
Contributions by noncontrolling interest owner	3,307	4,715
Distributions to noncontrolling interest owner	(10,298)	0
Payments of debt issuance costs	(250)	(5,788)
Dividends paid	(5,723)	(5,515)
Other	(994)	2
Net cash provided by financing activities	223,577	336,050
Effect of exchange rates on cash, cash equivalents and restricted cash	67	(771)
Increase (Decrease) in cash, cash equivalents and restricted cash	(35,202)	7,398
Cash, cash equivalents and restricted cash at beginning of period	54,895	22,593
Cash, cash equivalents and restricted cash at end of period	$ 19,693	$ 29,991