Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Aug. 16, 2021
Income Statement Disclosures
Sales and merchandising revenues	$ 12,076	$ 37,921	$ 25,191	$ 78,931
Cost of sales and merchandising revenues	12,877	27,284	23,948	59,023
Gross profit (loss)	(801)	10,637	1,243	19,908
Operating, administrative and general expenses	4,434	4,416	5,813	7,290
Interest expense, net	0	3,394	0	6,574
Other income, net	6,547	237	6,620	1,911
Income from discontinued operations before income taxes	1,312	3,064	2,050	7,955
Income tax provision	2,051	965	3,344	2,349
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(739)	2,099	(1,294)	5,606
Current assets:
Accounts receivable, net	11,998	18,707	11,998	18,707	$ 12,643
Inventories	6,318	7,375	6,318	7,375	6,739
Other current assets	311	2,473	311	2,473	1,503
Current assets held-for-sale	18,627	28,555	18,627	28,555	20,885
Other assets:
Rail assets leased to others, net	427	574,585	427	574,585	458
Property, plant and equipment, net	17,370	18,199	17,370	18,199	17,280
Goodwill	4,167	4,167	4,167	4,167	4,167
Other intangible assets, net	0	2,025	0	2,025	24
Right of use assets, net	2,322	18,969	2,322	18,969	20,999
Other assets, net	12	2,800	12	2,800	241
Total non-current assets held-for-sale	24,298	620,745	24,298	620,745	43,169
Total assets held-for-sale	42,925	649,300	42,925	649,300	64,054
Current liabilities:
Trade and other payables	1,883	3,666	1,883	3,666	2,546
Customer prepayments and deferred revenue	0	2,211	0	2,211	0
Current maturities of long-term debt	0	6,513	0	6,513	0
Current operating lease liabilities	2,112	6,023	2,112	6,023	4,672
Accrued expenses and other current liabilities	3,319	6,772	3,319	6,772	6,161
Total current liabilities held-for-sale	7,314	25,185	7,314	25,185	13,379
Long-term lease liabilities	3,113	14,718	3,113	14,718	16,119
Long-term debt, less current maturities	0	28,845	0	28,845	0
Other long-term liabilities	0	430	0	430	0
Non-current liabilities held-for-sale	3,113	43,993	3,113	43,993	16,119
Total liabilities held-for-sale	$ 10,427	$ 69,178	10,427	69,178	$ 29,498
Cash Flow Disclosures
Depreciation and amortization			0	17,588
Capital expenditures			27,276	5,703
Proceeds from sale of Rail assets			36,341	15,616
Non-cash operating activities - Gain on sale of railcars			(6,176)	(4,987)
Non-cash operating activities - fixed asset impairment			2,818	234
Non-cash investing activities - capital expenditures, consisting of unpaid capital expenditure liabilities at period end			$ 0	$ (113)
Rail Leasing Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration on sale of assets and liabilities of business						$ 543,100