Number of railcars purchased from ACF through purchase and sale agreement

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Related party transactions.

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Revenue as percentage of profit under agreement.

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Service agreement period.

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- Definition

Service Agreement Renewal Period

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No definition available.

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Amount of expense incurred and directly related to generating revenue from leased and rented property or equipment.

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- Definition

Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).

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- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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No definition available.

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Related Party Transactions (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
Related Party Transactions (Details) $ in Thousands	Apr. 27, 2015	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2010	Jan. 01, 2018 USD ($)
Related Party Transactions (Textual) [Abstract]
Railcar leasing cost of revenues		$ (13,387)	$ (11,617)	$ (26,380)	$ (23,676)
Revenue from related parties		0
Inventory, Net		77,972		77,972		$ 54,147		$ 51,326
Axis [Member]
Related Party Transactions (Textual) [Abstract]
Term of agreement							1 year
Service Agreement Renewal Period							1 year
Revenue from related parties						300
Term Loan and Credit Agreement [Member] \| Axis [Member]
Related Party Transactions (Textual) [Abstract]
Notes receivable		8,900		8,900		11,800
M.W. Recycling [Member]
Related Party Transactions (Textual) [Abstract]
Revenue from related parties		900	600	1,600	1,500
Insight Portfolio [Member] \| Maximum [Member]
Related Party Transactions (Textual) [Abstract]
Expense with related parties		(100)	(100)	(100)	(100)
Joint Ventures [Member]
Related Party Transactions (Textual) [Abstract]
Expense with related parties		(3,400)	(4,400)	$ (7,100)	$ (10,600)
Purchasing and Engineering Services Agreement [Member] \| ACF [Member]
Related Party Transactions (Textual) [Abstract]
Percentage of consideration under agreement				30.00%	30.00%
Revenue from related parties		0	0	$ 0	$ 0
Repair Services and Support Agreement [Member] [Domain] \| ACF [Member]
Related Party Transactions (Textual) [Abstract]
Percentage of consideration under agreement	30.00%
Revenue from related parties		$ 100	$ 100	$ 100	$ 200
Railcar Purchase and Sale Agreement [Member] \| ACF [Member]
Related Party Transactions (Textual) [Abstract]
Number of railcars purchased		0	0	0	0
Railcar services agreement [Member] \| ARL [Member]
Related Party Transactions (Textual) [Abstract]
Term of agreement				3 years
Service Agreement Renewal Period				1 year
Revenue from related parties		$ 0	$ 4,200	$ 0	$ 10,100
Railcar management agreement [Member] \| ARL [Member]
Related Party Transactions (Textual) [Abstract]
Expense with related parties		0	(100)	0	(300)
Railcar leasing cost of revenues		0	(1,000)	0	(2,800)
Component purchases [Member] \| ACF [Member]
Related Party Transactions (Textual) [Abstract]
Component purchases from ACF		700	1,700	1,700	3,500
Rail Management Transition Agreement [Member] \| American Entertainment Properties Corporation [Member]
Related Party Transactions (Textual) [Abstract]
Due from Affiliate, Current		0		0		$ 400
Railcar Leases [Member] \| IELP Entities [Member]
Related Party Transactions (Textual) [Abstract]
Revenue from related parties		400	200	800	400
Railcar Services [Member] \| RemainCo [Member] [Domain]
Related Party Transactions (Textual) [Abstract]
Revenue from related parties		$ 0	$ 100	$ 0	$ 100