Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities
Net income (loss)	$ (3,035)	$ (15,622)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	21,003	20,902
Bad debt expense	629	424
Equity in (earnings) losses of affiliates, net of dividends	1,931	7,033
Gains on sale of facilities and investments in affiliates	(4,701)	(685)
Gains on sale of Rail Group assets and related leases	(3,609)	(2,443)
Deferred income taxes	(628)	(988)
Stock-based compensation expense	1,220	1,473
Other	(94)	(20)
Changes in operating assets and liabilities:
Accounts receivable	7,563	(37,474)
Inventories	33,456	43,947
Commodity derivatives	4,017	(15,630)
Other assets	(9,375)	1,526
Payables and other accrued expenses	(277,612)	(270,296)
Net cash provided by (used in) operating activities	(229,235)	(267,853)
Investing Activities
Purchases of Rail Group assets	(25,074)	(7,340)
Proceeds from sale of Rail Group assets	5,621	4,967
Purchases of property, plant and equipment and capitalized software	(5,608)	(12,305)
Proceeds from sale of property, plant and equipment	125	206
Proceeds from returns of investments in affiliates	0	(22)
Proceeds from sale of facilities and investments	13,787	15,013
Purchase of investments	(1,817)	0
Change in restricted cash	(281)	(269)
Net cash provided by (used in) investing activities	(13,247)	250
Financing Activities
Net change in short-term borrowings	226,000	258,000
Proceeds from issuance of long-term debt	15,175	76,908
Proceeds from long-term financing arrangement	10,396	0
Payments of long-term debt	(37,852)	(80,399)
Proceeds from sale of treasury shares to employees and directors	511	1,275
Payments of debt issuance costs	(33)	(299)
Dividends paid	(4,483)	(4,338)
Other	(217)	(993)
Net cash provided by (used in) financing activities	209,497	250,154
Decrease in cash and cash equivalents	(32,985)	(17,449)
Cash and cash equivalents at beginning of period	62,630	63,750
Cash and cash equivalents at end of period	$ 29,645	$ 46,301