Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities
Net income (loss)	$ 3,160	$ 35,394
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	62,244	57,365
Bad debt expense	789	802
Equity in losses (earnings) of affiliates, net of dividends	12,804	(3,868)
Gain on sale of investments	(685)	0
Gains on sales of Rail Group assets and related leases	(6,366)	(12,438)
Excess tax benefit from share-based payment arrangement	0	(1,299)
Deferred income taxes	(46)	18,921
Stock-based compensation expense	5,542	2,598
Goodwill impairment expense	0	1,985
Other	(102)	1,061
Changes in operating assets and liabilities:
Accounts receivable	(5,425)	(6,003)
Inventories	283,158	292,960
Commodity derivatives	12,592	16,160
Other assets	36,536	(1,465)
Payables and other accrued expenses	(362,855)	(344,400)
Net cash provided by (used in) operating activities	41,346	57,773
Investing Activities
Acquisition of business, net of cash acquired	0	124,592
Purchases of Rail Group assets	(57,979)	(112,346)
Proceeds from sale of Rail Group assets	44,061	64,978
Purchases of property, plant and equipment	(56,138)	(42,387)
Proceeds from sale of property, plant and equipment	330	184
Proceeds from returns of investments in affiliates	7,443	1,480
Proceeds from returns of investments in affiliates	15,013	0
Proceeds from sale of facilities	54,330	0
Purchase of Investments	2,523	0
Change in restricted cash	260	248
Net cash provided by (used in) investing activities	4,797	(212,435)
Financing Activities
Net change in short-term borrowings	(15,000)	79,700
Proceeds from issuance of long-term debt	78,199	152,796
Proceeds from long-term financing agreements	14,027	0
Payments of long-term debt	(91,393)	(87,032)
Purchase of treasury stock	0	(49,089)
Distributions to noncontrolling interest owner	(3,400)	(2,453)
Proceeds from sale of treasury shares to employees and directors	1,159	447
Payments of debt issuance costs	(309)	(271)
Dividends paid	(13,020)	(12,011)
Excess tax benefit from share-based payment arrangement	0	1,299
Other	(1,998)	(2,770)
Net cash provided by (used in) financing activities	(31,735)	80,616
Increase (decrease) in cash and cash equivalents	14,408	(74,046)
Cash and cash equivalents at beginning of period	63,750	114,704
Cash and cash equivalents at end of period	$ 78,158	$ 40,658