Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Aug. 16, 2021	Dec. 31, 2020
Income Statement Disclosures
Sales and merchandising revenues	$ 25,018	$ 36,647	$ 103,950	$ 109,202
Cost of sales and merchandising revenues	19,065	28,049	78,089	80,187
Gross profit	5,953	8,598	25,861	29,015
Operating, administrative and general expenses	3,415	5,609	10,705	16,052
Interest expense, net	2,139	3,716	8,714	12,032
Other income (loss), net	(1,330)	588	583	2,543
Income (loss) from discontinued operations before income taxes	(931)	(139)	7,025	3,474
Income tax provision (benefit)	(2,777)	(566)	(428)	250
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	1,846	427	7,453	3,224
Current assets:
Cash and cash equivalents	0	0	0	0		$ 0
Accounts receivable, net	18,389	19,620	18,389	19,620		18,508
Inventories	6,803	7,016	6,803	7,016		7,627
Other current assets	1,369	18,496	1,369	18,496		6,524
Current assets held-for-sale	26,561	45,132	26,561	45,132		32,659
Other assets:
Rail assets leased to others, net	458	587,848	458	587,848		591,946
Property, plant and equipment, net	17,439	18,360	17,439	18,360		18,868
Goodwill	4,167	4,167	4,167	4,167		4,167
Other intangible assets, net	24	3,369	24	3,369		2,855
Right of use assets, net	16,521	24,561	16,521	24,561		22,644
Other assets, net	254	4,233	254	4,233		2,994
Total non-current assets held-for-sale	38,863	642,538	38,863	642,538		643,474
Total assets held-for-sale	65,424	687,670	65,424	687,670		676,133
Current liabilities:
Trade and other payables	4,223	6,607	4,223	6,607		2,874
Customer prepayments and deferred revenue	128	1,667	128	1,667		1,934
Current maturities of long-term debt	0	5,286	0	5,286		6,109
Accrued expenses and other current liabilities	9,076	14,436	9,076	14,436		14,360
Total current liabilities held-for-sale	13,427	27,996	13,427	27,996		25,277
Long-term lease liabilities	13,592	19,016	13,592	19,016		17,342
Long-term debt, less current maturities	0	198,889	0	198,889		30,087
Other long-term liabilities	0	3,429	0	3,429		667
Non-current liabilities held-for-sale	13,592	221,334	13,592	221,334		48,096
Total liabilities held-for-sale	$ 27,019	$ 249,330	27,019	249,330		$ 73,373
Cash Flow Disclosures
Depreciation and amortization			21,786	26,670
Capital expenditures			(8,368)	(29,460)
Proceeds from sale of assets			18,705	7,774
Loss on sale of discontinued operations			1,491	0
Non-cash operating activities - Gain on sale of railcars			(5,603)	(175)
Non-cash operating activities - fixed asset impairment			626	0
Non-cash investing activities - capital expenditures, consisting of unpaid capital expenditure liabilities at period end			$ 0	$ 1,081
Rail Leasing Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration on sell of assets					$ 543,100