Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net earnings	$ 35,256	$ 30,325
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	46,333	42,746
Amortization of deferred costs	377	377
Net gain on disposal of property, plant, equipment and leased railcars	(519)	(113)
Asset Impairment Charges	3,554	0
Earnings from joint ventures	(2,246)	(1,578)
Provision for deferred income taxes	12,443	34,862
Items related to investing activities:
Available-for-sale Securities, Gross Realized Gains	0	(2,216)
Changes in operating assets and liabilities:
Accounts receivable, net	7,056	5,741
Accounts receivable, due from related parties	(2,196)	3,542
Income taxes receivable	419	(14,194)
Inventories, net	(28,358)	2,444
Prepaid expenses and other current assets	(28)	519
Accounts payable	11,925	(3,933)
Accounts payable, due to related parties	11	(3,233)
Accrued expenses and taxes	7,238	(7,432)
Other	(368)	3,239
Net cash provided by operating activities	90,897	91,096
Investing activities:
Purchases of property, plant and equipment	(7,386)	(4,812)
Capital expenditures - leased railcars	(73,682)	(132,388)
Proceeds from the disposal of property, plant, and equipment and leased railcars	2,030	417
Proceeds from Sale of Available-for-sale Securities	0	10,535
Proceeds from repayments of loans by joint ventures	4,430	4,430
Net cash used in investing activities	(74,608)	(121,818)
Financing activities:
Repayments of debt	(19,162)	(19,101)
Payment of common stock dividends	(22,901)	(22,901)
Net cash used in financing activities	(42,063)	(42,002)
Effect of exchange rate changes on cash	(86)	156
Net increase (decrease) in cash, cash equivalents, and restricted cash	(25,860)	(72,568)
Cash, cash equivalents, and restricted cash at beginning of period	116,884	195,285
Cash, cash equivalents, and restricted cash at end of period	$ 91,024	$ 122,717