Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities
Net income (loss)	$ (27,135)	$ 3,160
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	64,546	62,244
Bad debt expense	1,076	789
Equity in (earnings) losses of affiliates, net of dividends	(2,168)	12,804
Gains on sale of Rail Group assets and related leases	(7,642)	(6,366)
Gains on sale of assets	(11,443)	(826)
Stock-based compensation expense	4,550	5,542
Goodwill impairment	42,000	0
Other	(610)	(7)
Changes in operating assets and liabilities:
Accounts receivable	(334)	(5,425)
Inventories	200,667	283,158
Commodity derivatives	16,073	12,592
Other assets	10,422	36,536
Payables and other accrued expenses	(229,268)	(362,855)
Net cash provided by (used in) operating activities	60,734	41,346
Investing Activities
Acquisition of business, net of cash acquired	(3,507)	0
Purchases of Rail Group assets	(77,513)	(57,979)
Proceeds from sale of Rail Group assets	18,368	44,061
Purchases of property, plant and equipment and capitalized software	(26,705)	(56,138)
Proceeds from sale of assets	26,601	69,673
Proceeds from returns of investments in affiliates	1,339	7,443
Purchase of investments	(4,929)	(2,523)
Other	1,470	260
Net cash provided by (used in) investing activities	(64,876)	4,797
Financing Activities
Net change in short-term borrowings	(11,059)	(15,000)
Proceeds from issuance of long-term debt	35,175	78,199
Proceeds from long-term financing arrangement	12,195	14,027
Payments of long-term debt	(54,326)	(91,393)
Distributions to noncontrolling interest owner	0	(3,400)
Proceeds from sale of treasury shares to employees and directors	450	1,159
Payments of debt issuance costs	(2,024)	(309)
Dividends paid	(13,485)	(13,020)
Other	(936)	(1,998)
Net cash provided by (used in) financing activities	(34,010)	(31,735)
Increase (decrease) in cash and cash equivalents	(38,152)	14,408
Cash and cash equivalents at beginning of period	62,630	63,750
Cash and cash equivalents at end of period	$ 24,478	$ 78,158